said by Gone:
Shaw Direct also broadcasts some of their channels in MPEG4, which is the exact same stuff Bell uses on Fibe. Nat Geo Wild is their first HD channel in MPEG4 (they've had a whole bunch in SD for a whole now), and every channel that will be carried on G1 will be in MPEG4 as well. Not only does MPEG4 use a lot less bandwidth, but there's a lot less macroblocking. The image quality on Nat Geo Wild is one of the best I've seen on Shaw Direct so far.
Bell TV is switching to MPEG4 at some point...they just went through a program to swap out receivers for customers which wouldn't support the new MPEG4 programming.