I do this fairly often with Time Warner Cable on my area. They have an FTP site at their B.O.C. center that I can transfer finished spots into. I usually send a higher quality Meridien compressed or a Quicktime, either DVC25, DVC50 or 8-bitUC rather than an Mp2 file. Depends on whether I finish on Apple or Avid.
After figuring out their formatting and getting an account/password setup, it’s actually rather quick and easy. I can send it right from the computer that I edit on too! They dub out a backup copy on tape right at their BOC and save it there.
Rather a slick way to do it. Most TV stations haven’t gotten this far yet. 🙁
Tom