TV specifications call for a lot of technical knowhow. The video levels need to fall within a certain range, the audio as well. If you stray outside of those ranges even a little (like .1% even), they will kick it back.
And then there are things like how do they want it delivered? DVDs aren't used for playback at broadcast networks unless they are smaller local stations or cable access. Typically they want tape, like BetaSP or Digibeta or HDCAM. And for that you need an IO card, and knowledge on how to use a deck.
If they want a digital file...cool! That's easier, but you still need to fall within video and audio specs. How do you know what they will accept? Ask them. ONly then can tell you what they need.
This isn't something we can really explain how to do in a forum. There are full professions that only deal with making sure shows meet broadcast specs. So, my suggestion is to hire someone who does this to prep your finished :30 spot for air. You will be what is known as the OFFLINE editor...or creative editor. And they are the ONLINE editor. You might need someone who knows audio too...if the specs on those are uber strict.
Shane
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