Unless you are BBC1, BBC2,

of Five, it's bit of risk naming your channel after your channel number as you at the mercy of BSkyB as to where you exist on their EPG, not to mention that there's very little chance of getting the same number if you are on cable as well.
As for Poker425, the feeling is that everyone, the players, casinos & the viewers, know us very well as Poker425 & to rename ourselves Poker8xx will just confuse matters (plus we can't afford the re-branding of our T-Shirts & Caps!!

)
Agree with Tikay, it hardly rolls off the tongue, but I'm sure everyone will find their fave poker programme wherever we get moved to! (I believe there will be an announcement in the next day or so).