Just set up Reliance Big TV via component video and compared it to Tata Sky.
I just hate the Reliance picture!
It is just far too blocky; inspite of MPEG4, they still use too low a bit-rate for that to be an advantage over MPEG2.
Tata Sky also has blocky motion compensation artifacts, but Big TV is just plain offensive.
Checked channels like Nat Geo, Star Sports etc etc...
It is ironic that Big TV, Dish TV and Tatasky all take their customers for a ride by claiming low bit rate video to be "DVD Quality"
Take a properly mastered DVD, and you will never find a single motion compensation artifact on it!
And Reliance also seems to have some "step like jaggedness", which might be related to interlacing.