[mythtv-users] Channels list is false

[manu]

	Hi all,
My last problem (I hope) with mythtv is that though it detected the  
good provider (Comcast Cable) for my Zip code, the channels are false :  
several have not the actual number, so that several channels are not  
reachable at all also (there is no channels between 38 and 94 in the  
listing, which prevents me to see those channels though they are  
existing when I use xawtv for example).
How can I find the good channels list?
Thanks
Bye
Manu