I got hold of a tm800hd recently so I'm still learning & trying to get as reliable as can be achieved with this box.
I tried the 20121021 image, just found it a bit unstable, and the spinner was a put off, much rather prefer the cogs(lol).
I settled on the WOS Cooltv epg edition which I'm happy with, added the brushed ali skin which I also liked but takes up a lot of memory. Barely have 2mb left to add anything else.
Also added rats bouquets but not the auto updater, and tweaked them a little.
Added the timeshift fix.
Only problem I would like sorted is the low audio on hd channels & the fan spinning constantly even on standby.