In the last year the 3 major broadcasters here in Iceland all started accepting digital uploads of commercials, which should have been a good thing but the downside is that they decided on Quicktime DV-PAL files as the delivery format. I have done commercials that looked good uncompressed in editing but after outputting to DV I had to redo the color grade because the reds would smear all over the place.
I try to tell clients that outputting to tape means more quality but they usually just look at the time and money they save by uploading and do that instead 🙁