FTP and downloads are much cheaper and faster for you the sender and the client as well. For pennies more, you can duplicate some DVD-R's with the footage on them as DVD mpeg 2 and as a data file in H.264, and cover ALL the bases. A good PR person will build a database of every station and their preferred delivery methods/formats. That's part of their job.
BetaSp is not dead - it just smells funny. I was still sending dubs to Nightline in BetaSP format by their request as late as last year, even though I offered them DVD and DVC-Pro. Beta outlived Ted Koppel there.
Beta is not dead until EVERY beta deck is dead. Small market or large, there are more of them out there than you think.