I am not sure to be honest. Best bet would be to ask the TV station what format they would like.
As Paul_LS points out, it's a bit like YouTube uploads. Though it doesn't change weekly, it will differ greatly by the station. Some will want only HD footage on BD, or maybe tape, while others will take SD on DVD. Someone at the particular station will know and can tell you.
The format, Audio and Video issues, plus delivery schemes will be set someplace. Do not assume - ask and get the full specs. If there is something that you do not understand, ask them for clarification. Some terms, while in general usage, can mean one thing to me, yet another to Paul_LS. It happens all the time. What you need to know is, what does it mean to the TV station.