I've been post producing a low budget sports show that has been airing on a handful of tv stations and cable outlets for about 6 years now. I will be contacting each station to inquire about what digital delivery format they accept, as well as their playout server specs, etc. I have seen a lot of mention of digital delivery for tv spots, is anyone here making weekly digital deliveries of half hour tv shows? How about the upload time on that? What about the closed captioning? Would SD 4:3 be encoded 720*486 so as to include the line 21 info? Anyone handling their own closed captioning encoding for HD? Right now I am able to take the scc file and encode my own line 21 captioning for the Betacam Sp output, but I'm not sure what I will have to do when it comes time to switch production to HD with regard to captioning. Thanks in advance for any insights.