I'm shooting and editing a promo for a dance act, who want to get there video played on a digital tv channel, hopefully MTV Dance. What's the process for this? Also which media format do tv channels ask for - e.g. would they want a Quicktime movie or would they want a DVD copy?
The only way to determine this is to contact the stations or networks to whom you are submitting your work. No two have the same delivery specs. Quite sure, though, that DVD would not be acceptable. Likely a QT file to their specification, or digital tape, on format specified by the station or network.
They may accept material for auditioning/screening on DVD or a low-res file, but again, they're the ones who will tell you what they require.