Hi,
In the UK, the easiest way to get those channels is through Sky.
I suspect that there is a problem somewhere with the setup if you are getting picture break-up. I checked Zee Music which is FTA and there doesn't seem to be any problem on that transponder. Incidently I had to rescan as it had changed frequency, but the Sky box should take care of that itself.
Things to check:
Any cordless phones around, turn 'em off see if it improves.
Dish alignment/Obstruction/LNB skew
Poor quality/water ingress cable, replace with good quality cable like wf100 for example.
LNB gone up the spout, very easy and cheap to replace.
Start with the cheapest first.
Robbo
