Still missing EPG for multiple channels here as well using zip code 13662 (no EPG for WNPI, WWNY (CBS), Global, CHCH, Omni1, Omni2, CityTV, TVO, CTS) but is working for some channels (CBC, SRC, TVA, V, TQ, CTV, CTV2, WWNY (FOX) and WCFE).
It is nice the problem has been fixed for UK and Ireland, now if MS would just fix it for North America as well I would be happy.
This has been going on since Dec. 24, 2012 and there are dozens of posts on the
http://connect.microsoft.com feedback site about this problem but so far I haven't seen any indication that MS are going to fix this problem any time soon.