I think an improvement to the schedule would be to display today as the top day of the week. If it's a Friday, have Friday as the top day of the week. That way you will always see today and the upcoming 6 days, making the schedule more useful. Past streams, regardless of when they happened, won't show up unless it was the same day, or if the user manually scrolls backwards.

If the user switches week, it would make sense to adjust it so that the top day is then the normal first day of the week of that locale (English - US = Sunday, English - UK = Monday). So today it would show the week from Friday (2023-04-07) to Thursday (2023-04-13), but if you press forward, it could then show the next week from Monday (2023-04-10) to Sunday (2023-04-16). It clearly states both weekday and day of the month on the left side, as well as the date-range at the top, making it very clear what's going on.

The past schedule doesn't work properly for me when it comes to past streams. The previous Sunday (2023-04-02) I did a stream that doesn't show up in the schedule, but does in my streaming-history. I added that I will stream on Thursday on a Friday, expecting that stream to only show up on future Thursday, but it instead showed up on the same week, when I didn't do it.

So my schedule as of now (2023-04-07) says that I did a stream on 2023-04-06 when I didn't, and the stream I did on 2023-04-02 doesn't show up. So it's not reliable.

the timetable is uncomfortable and confusing, too bad i can't upload a screenshot.
at the moment i'm watching a livestream and the next upcoming stream seems to be 18hrs away. but that's actually something streamed 6 days ago, it's just misleadingly displayed on the same day, today.
i can understand the data behind it, but a sliding window would be better than the fixed 7-day-view.
this and a possibility to adjust how many days are displayed could greatly improve the schedule imho

I was going back to update my stream schedule after going through a game quicker than originally anticipated, and when I went to look to see if my schedule had updated, I saw there was overlap with upcoming streams and previously done streams. I do love the ability to pull up the streamer's schedule and see both upcoming streams and also streams that happened in the past 7 days and LOVE the ability to simple click and be taken to the VoD page, but it looks really messy the way the two overlap with each other. 

I included an image that shows my schedule with the highlighted part as upcoming streams and the past broadcasts that happened already left unedited. There needs to be some kind of clearer separation between the two in my opinion. Maybe above the timeline, across the 24 hours of a day, have two buttons centered above them with one saying "Upcoming streams" & "The Past Week's streams" as an idea. I'll be honest, I'm not someone trained to design UI's so I can't suggest too many ideas but I can for sure tell that the overlap between the two looks messy and uninformative. 

Also as a side mention, as someone who does late night streams usually running from 10:30 PM - 4:30 AM, on my schedule page it doesn't show the game cover for games on previous broadcasts because the sliver of time the stream starts before the end of a day is too small to fit a cover in. But for scheduled upcoming streams, it does show the game cover, but on the next line. Something to make sure game covers appear at all times would be huge. I also think this should be an easy fix for Past Broadcasts since the broadcast has already ended, the confusion on if the stream started last night or early this morning isn't really important since the stream already ended, as opposed to making sure the information is clear for when someone can catch an upcoming stream. 

Image for reference: https://i.imgur.com/MaDWoSd.png