I usually stream a lecture, a few favorite TV shows on random playlists, some thriller or action movies, and maybe a favorite Youtuber. The scripts I use for this really randomize things into 200+ item playlists per window, so I can quickly flip through anything I don't want to watch right now.

IMO distraction and healthy prospective activity (stimulation, personal interest, cool new stuff) have become tragically intertwined and confused.

To me, distraction in the negative sense is the byproduct of a lack of what I call the "three C's", comfort, clarity, and confidence. Once I'm sailing through the day productively, singleminded focus is now a problem that can easily turn into productivity exhaustion. The streams help prevent this with entertaining mood support based on my core interests. (I wish everything I had to do at work was based on my core interests!)

BTW I don't generally watch new material in this context. It's usually from my favorites I've already seen, unless I'm ready to take a break.