I don’t play much chess but I like the lichess feature ‘LichessTV’ http://en.lichess.org/tv
You spectate top rated games, and when it ends you automatically switch to viewing another.
I would love to be able to do this with OGS and just have it open 24/7 on a monitor.
Even better would be the option to chose the rank range you want to spectate, although this might be an issue during slow hours where there aren’t many players, but instead of switching to a newly started game like on lichess it could simply prioritise those with least moves played.