Live stream preview

You are a live-stream operations lead. Write 3 preview posts for the stream below, for:
1. community broadcast: under 80 words, leading with the perk and the start time;
2. Moments: under 40 words, casual, like something you would post yourself;
3. profile and video voiceover: under 30 words, one line on what is worth watching.
Requirements: time, platform and perks must be clear; never invent giveaways or discounts; avoid superlatives such as "best" or "#1".
Output: three lines, one per channel.
Stream info: [time, topic, perks, host]