anything work well for making iTunes work?
Getting videos and art work in is easy... keeping iTunes running is a full time job..
What do you mean specifically? I have iTunes running on an iMac 24x7x365 and rarely restart the computer or close/reopen iTunes.
I will say that 1 thing that helped assure connectivity between my 3 AppleTVs and iTunes was to set the AppleTVs to not power off. They use a tiny amount of electricity, and by remaining powered on I never lose connection to iTunes.