To keep a recorded algebra course live on YouTube from a Mac, send a looping lesson or playlist from an encoder such as OBS to a YouTube stream you have created in Studio. First confirm that live streaming is enabled on your channel, then test the whole setup before you leave the Mac unattended.
A 24-hour broadcast should not be assumed to create one complete 24-hour replay. YouTube’s automatic archive guidance covers streams under 12 hours; if replaying every lesson matters, plan for shorter broadcasts or a separate recording and check the current archive behaviour in Studio.
Confirm that your channel can go live
Open YouTube Studio and check that live streaming is available for the channel you intend to use. YouTube’s current live-streaming eligibility guidance says the channel must be verified and must not have had a live-streaming restriction in the preceding 90 days. The same page says streamers must be at least 16. Check that official page for current requirements rather than treating an old tutorial as definitive.
If this is the channel’s first live stream, activation may take up to 24 hours. Do this check well before you plan to broadcast: discovering the wait on the evening you meant to start a course loop leaves no useful time to fix it. If Studio reports that streaming is unavailable, resolve the account issue there before configuring OBS.
Eligibility is separate from whether the eventual stream works well. A channel can be permitted to go live while the Mac’s connection, encoder configuration, lesson file, or audio still needs attention. Treat approval as the first gate, not as a reliability test.
Prepare lessons, order and permissions
Decide what a viewer should encounter when they open the live page. A single lesson that repeats is easy to configure, but a learner arriving halfway through may see the same explanation restart. A sequence of lessons can make a more useful all-day classroom: arrange files in a deliberate order, and consider adding a short opening slate or a transition that tells late arrivals what is playing. Those are teaching and presentation choices, not YouTube requirements.
Check every file before putting it in a playlist. Confirm that the intended version opens, the picture contains the full board or slides, and the audio is present. If filenames are ambiguous, rename them in a way that makes the order obvious. For example, filenames beginning with lesson numbers can help you check the sequence before adding them to an OBS playlist. Do not rely on a remembered order when a playlist is about to run without supervision.
Use only video and audio that you have the rights to broadcast. That includes music under an introduction, a textbook scan, a colleague’s recorded explanation, or images embedded in lesson slides. This is a practical rights check, not a promise about how YouTube will assess a particular upload. If you are unsure whether a material is cleared for a public live broadcast, leave it out until you have confirmed permission.
Think about how the course will be used. If a lesson is designed for a teacher to pause and answer questions, a continuous loop is not the same as a live class. Tell viewers that the material is recorded and indicate how they can find the lesson they need. If the main need is to play several lessons in a planned order, this guide to making a YouTube live stream play videos in order in India covers that playlist problem from a related angle.
Create an encoder stream in YouTube Studio
In YouTube Studio, open the Live Control Room and create or schedule a stream using the encoder workflow. Add a useful title and description, choose the audience and visibility settings that fit the course, and select a start time if you are scheduling an event. Review those choices before sharing the watch-page link; a public educational stream should not be accidentally left private or unlisted if your viewers expect to find it openly.
YouTube describes an encoder as a tool that converts video into a digital format for YouTube Live. Its encoder setup instructions guide you through creating the stream and connecting the encoder. Studio supplies a stream URL and a private stream key. The URL tells the encoder where to send the feed; the key associates that feed with your stream.
Treat the key like a password. Do not put it into a lesson slide, a public document, a screenshot you share for help, or a screen recording. If you need to show the OBS configuration to someone, hide the key first. Anyone who obtains the key may be able to send a feed to that stream, so keep it out of material intended for viewers.
For a scheduled stream, starting the encoder is not necessarily the final public-start action. Follow the Live Control Room prompts, wait for the preview, and use Go live when Studio asks you to. When the broadcast is over, end it in the Control Room and stop sending content from the encoder. Keep the official encoder instructions open during the first setup, as Studio’s controls and guidance can change.
Connect OBS on the Mac
Install OBS Studio from the OBS Project and open it on the Mac you plan to use. In OBS, create a scene for the course. A scene is a collection of sources that make up the picture and sound sent by the encoder; for a basic recorded lesson, the essential source is the video file itself. OBS’s quick start guide walks through the initial setup and connection flow.
Open OBS’s stream settings and select the service or custom connection method supported by the current interface. Copy the server URL from YouTube Studio into the server field and the private stream key into the key field. Paste carefully, without extra spaces, and do not read the key aloud or expose the settings window while recording a tutorial. The fields may look similar across software, but use the values shown for this particular stream rather than reusing a key from an unrelated event.
Before you click Start Streaming, check that the selected stream in Studio is the one you mean to use. If you created a scheduled event and a separate test, it is easy to send the test feed to the wrong destination. Give streams descriptive names in Studio and verify the title in the Live Control Room before connecting.
The guide to using a cloud encoder for a prerecorded YouTube Live stream discusses the alternative for readers who do not want a Mac to remain on and connected. A local OBS workflow gives you direct control over the files and playlist, but the Mac must keep running OBS and remain able to reach the internet for the feed to continue. There is no guarantee that a particular computer or connection will stay uninterrupted.
Set up the lesson loop and check the picture
For one local video, add an OBS Media Source and point it to the lesson file. Check the source’s Loop setting so playback starts again when it reaches the end. The OBS Project documents Media Source options, including looping, in its media sources guide. Keep the file in a stable location; moving or renaming it after configuration can leave the source unable to find it.
For multiple lessons, OBS provides a VLC Video source that can use a playlist and repeat the playlist. OBS lists the source as available on macOS, and VLC must be installed for the source to appear. Add the files in the order you want viewers to see them, enable the playlist loop, then watch the transition from the final item back to the first. A correct-looking list in the settings is not proof that the order or repeat behaviour feels right on the actual output.
Set a canvas and output size that preserve the lesson’s important details. Algebra depends on small marks: a minus sign, exponent, fraction bar or subscript can change the meaning. View the stream at a normal phone playback size, not only full-screen on the Mac. If learners have to zoom or guess whether a mark is a minus sign, simplify the slide, enlarge the writing or adjust the framing before broadcast.
Check the audio meters while the lesson plays and listen to the actual programme output. A meter that moves does not tell you whether speech is intelligible or whether the source is too quiet relative to an intro. Listen for clipped syllables, long silences, unwanted desktop sounds and abrupt cuts at file boundaries. If a playlist contains lessons recorded at different levels, test more than the first one.
The OBS source supports and YouTube’s encoding options are not a prescribed algebra layout. Choose settings that suit the Mac and available connection, then judge the result by whether the equations and voice are clear to a viewer. Avoid changing several settings at once: if the picture becomes harder to read or the stream becomes unstable, you want to know what changed.
Test the watch page before leaving it live
Run a short test stream before the real all-day broadcast. YouTube recommends testing the upload connection, choosing a quality that suits it, using RTMPS, and checking stream-health messages. OBS also recommends trying a test before the first real stream. Use YouTube’s live encoder settings guidance alongside the OBS quick start guide rather than assuming a setting copied from another creator will suit your connection.
A useful test includes more than seeing the OBS preview. Start the encoder, check that the Live Control Room receives a preview, and confirm the watch page plays for a viewer. Check both video and sound on another device if one is available. Look for warnings in Studio’s stream-health area and listen for interruptions or distorted speech. If a warning appears, use its current explanation to decide what to change, then test again.
Test the whole lesson path. Let a file play long enough to confirm it advances or loops as intended; for a playlist, check a transition between lessons. Confirm that the title, thumbnail, description and visibility are right, and that no private key or desktop notification appears in the programme. A quick preview can miss a problem that only appears when the source reaches its end.
Before the unattended run, make a simple checklist: correct YouTube event selected, key kept private, correct lesson sequence loaded, audio audible, phone-size equations legible, preview visible, health messages checked, and the Mac connected to power and network. The list is useful because these are separate failure points. Passing one check does not establish that the others are sound.
Leave the Mac ready for a long run
A local encoder depends on the local setup continuing to send the feed. Leave the Mac awake, OBS open, the lesson files available, and the internet connection in place for as long as the broadcast is meant to run. Review power and sleep settings before starting so the computer does not intentionally sleep during the lesson. Do not close the lid or move the Mac out of its tested configuration unless you have confirmed what that does to your particular setup.
This arrangement has a clear trade-off: you can control the source and playlist on your Mac, but you also take responsibility for the Mac being available. A power interruption, lost network connection, application exit or missing source can interrupt the feed. The practical response is to test the actual machine and connection, keep the setup simple, and have a plan for checking the stream rather than assuming it will look after itself.
If you cannot leave a Mac running, a cloud playout approach may better fit the requirement, but assess the service’s current capabilities, terms, costs and key-handling process yourself. Do not assume that a cloud option can schedule your exact course or recover in a particular way without checking its documentation. The options for looping a YouTube playlist as a 24/7 live stream provide more context on the wider workflow.
Plan for interruptions and replay limits
A live feed and a replay are different outcomes. YouTube’s encoder guidance says streams under 12 hours are automatically archived, but it does not promise a complete automatic archive for a 24-hour broadcast. Do not tell learners that one continuous all-day stream will certainly be available afterwards as a complete recording. Check the current Studio archive behaviour and YouTube Help page when planning a course that relies on replay.
If viewers need every lesson afterwards, consider dividing the day into shorter broadcasts or keeping a separate local recording, then verify that the resulting files and archives are available as expected. A shorter event can be easier to identify and share, while a separate recording means managing another file and checking its sound, storage and completeness. Neither choice removes the need to verify the current platform behaviour before promising access to students.
Plan what you will do if the stream stops. Know how to inspect Studio’s health messages, reconnect OBS and confirm the correct event is receiving the feed. If the broadcast is for a class, provide a simple fallback way for learners to find the lesson files or be told when the stream resumes. A reconnection may restore the live feed, but it should not be described as restoring a single uninterrupted replay.
Finally, check the rules and account settings that apply to your channel and content before relying on monetisation, archive availability or a particular audience feature. YouTube says monetisation may be available to channels in the YouTube Partner Program, but that is not a promise that this course or stream will qualify. Review the current official requirements for your own circumstances.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Can I stream a prerecorded algebra lesson from a Mac all day?
Yes, if your channel is eligible and an encoder such as OBS sends a looping file or playlist to YouTube Live. The Mac, OBS, files and internet connection need to remain available, so test the exact setup before relying on it for a long run.
Does YouTube keep a complete replay of a 24-hour stream?
Do not assume that it does. YouTube’s cited automatic archive guidance covers streams under 12 hours and does not promise a complete archive for a 24-hour broadcast; check the current guidance and Studio before planning around replay.
How do I repeat several lessons rather than one file?
Use an OBS VLC Video source with the lesson files arranged as a playlist and enable playlist looping. OBS says VLC must be installed for this source to appear on macOS, so test the order and the return from the last lesson to the first.
What should I check before leaving OBS running?
Confirm that Studio shows the correct event and preview, the viewer page plays with clear audio, equations are legible on a phone-sized display, and stream health has no unresolved warning. Keep the Mac awake, OBS open, source files accessible and internet connected, while remembering that these checks cannot guarantee uninterrupted uptime.