With my Dvico FusionHDTV7 Gold RT, I have received up to 408 channels via using it's scanner, but I have had to reinstall it several times, either due to upgrades, or to correct some other problem.
On the install that I just finished, it only scanned 336 channels, but a lot of those missing are encrypted channels that I don't subscribe to on my cable service. However, it is also missing all of the radio channels which I generally receive.
I'm trying to figure whether this is due to the installations, or a actual change in channels available through the cable. I realize that this question should be better served by talking to my cable service tech, but I have learned by experience that is a lost cause, because every rep that I talk to tells me a different story which conflicts with all others.
I doubt that there is an easy answer for this, but that doesn't prevent me from asking.