I had the same problem,but after reading a post about contacting dishquality@echostar.com and emailing the station in question my problem has been corrected, as one morning I woke up turned on my DISH 922/wMT2 and the programming information for MeTV was being supplied to my OTA guide.
So I highly recommend if you still are having a problem with MeTV's programming information you might try what I did.Good Luck!
Is your Metv station an ota only channel? In my area of southeast Texas 12.4 - Metv & 12.3 - Mytx are both ota only channels run by our local 12.1- ABC/12.2- Nbc affiliate. DISH claims that they won't carry guide data for these two channels because they are ota only channels and are not carried by DISH on the satellite.