Usually, no—not to an automated playlist that is already airing. Restream says you must add, remove, or reorder playlist videos before the playlist goes live; during playback, its documented editable elements are graphics and chat. If you mean playing a prerecorded clip during a hosted live show, that is a different workflow: StreamYard documents sharing and queuing videos in a live production.
First, distinguish a loop playlist from a live production
“Add a video while the stream is live” can mean two different things:
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- Change the playlist itself: Insert a new file into an automated playlist already airing, or remove or reorder an existing entry.
- Play a clip during a hosted show: Share a prerecorded video as part of a live production, without changing the underlying playlist of an automated loop service.
Those workflows are not interchangeable. A live-production studio may let a host queue a clip, but that does not mean it can edit a separate service’s playlist once that playlist is on-air.
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Can you edit a live Restream playlist?
No. Restream’s playlist guide says playlist videos can be added, removed, or rearranged only before the playlist goes live. Once it is airing, the guide identifies graphics and chat as the elements that can still be edited; it does not document a way to hot-add a video to the playlist.
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What to do before starting
- Build the playlist from existing or uploaded videos.
- Set the video order and add any further files or countdown you need.
- Preview or schedule the playlist only after the entries are correct.
Restream’s guide says a playlist can contain up to 40 video entries and run for up to 24 hours. It also says playlists require a paid Upload & Stream add-on tier. Limits, plan availability, and prices can change, so check Restream’s current guide before choosing a plan.
If the playlist is already live
Plan on leaving its video entries as they are for that airing. You can use the documented controls for graphics or chat, but the cited guide does not establish a way to insert a new file into the active playlist. For a later broadcast, update the playlist before starting it.
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Want to play a clip during a live-hosted show?
That is a separate option from modifying an automated Restream playlist. StreamYard’s help article, Sharing Long-Form Videos in StreamYard, documents sharing long-form video into a live stream or event and queuing several videos to play like a playlist. This describes a hosted production workflow; it does not show that StreamYard can change a Restream playlist that is already live.
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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →More generally, YouTube’s Live Streaming API documentation describes transmitting video to a bound live broadcast and ties broadcast state to starting and stopping transmission. It does not document a command for adding entries to an already-airing vendor playlist.
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Check rights before playing or looping a video
YouTube scans live streams for third-party content, including other live broadcasts. If it detects a match, YouTube may replace the stream with a placeholder and warn the creator; the stream may be interrupted or terminated if the content remains or a relevant strike applies. For licensed content, YouTube advises asking the rights holder to add your channel to its Content ID allowlist. A license alone does not guarantee that a live stream will avoid interruption.
Check that your permission covers both the live use and any archived replay. See YouTube’s guidance on copyright issues with live streams.
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What to compare before choosing a workflow
If you need to insert or change videos after a broadcast starts, ask the provider specifically whether it can edit the actual queued files on-air. A live studio’s ability to play clips is not proof that it can edit an automated playlist. Also check whether the workflow needs a host or encoder to stay connected, along with upload and storage limits, maximum duration and resolution, and how rights and archived copies are handled. The vendor documentation cited here does not establish a complete, current feature comparison across services.
Or let it run in the cloud
If your goal is a YouTube channel that keeps playing uploaded videos, StreamNeo is a cloud option: upload a recording or build a playlist, add your YouTube stream key once, and go live. It keeps the loop running without a computer or home connection staying on. Each slot streams the uploaded quality up to 4K 60fps at one flat price, and it automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly service is $9.99 per month.
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