The aerial screensavers are nice, but seem to get stuck on SF and London. And after a day or two they are just tiresome. I cannot believe Apple went to all this trouble with the ATV4 and didn't use any of the increased memory to fix the just plain broken piece of crap the Home Sharing screensaver is. It has only been able to cache a tiny fraction of your pictures, for years and years now! The fall update may have increased the capacity a bit, but now the screensaver gets stuck with just the cache and no ability to change the mode. I tried everything and finally called Apple support. I finally got someone who confessed that yes this is a problem and that his own ATV4 had stuck, but he was using the beta of the new update and it fixed this. I eagerly awaited the update and installed about a week ago, and, NOPE. It was still frozen in the cache. I had to reset the whole Apple TV and re-download all my apps and re sign into everything. THis wasn't nearly as big a PITA with the older ATVs, but with the app capability it sucks real bad.
Yes the screensaver is the MAIN feature of the ATV, not the best. When you aren't watching something that is what is on. Why would anyone want to see the same stuff over and over. I have over 10k images to shuffle and want my double priced ATV to stream them just like it does my music. I missed two weeks of my Christmas pics waiting for the update.
THere are years of complaints on the net about this tiny cache issue. It would seem to be a simple fix and one a way Apple could avoid pissing off its loyal customers on an hourly basis!