Sad news, but I think I get the reasons. I must admit it's not TV Forum for me but TV pres generally that has got less interesting. Channels don't seem to care about it anymore and with ever shrinking budgets I can't see that changing.
Thanks Asa for bringing the inner geek out in me, it was genuinely comforting to realise that it wasn't just me who got up early to watch Breakfast Time and TV-am just to see their titles and graphics, remembered fondly the cakes and flying fish-fingers which were nothing to do with food, and got very irate when text got squashed or someone used the wrong font.
I'll never forget the exciting times when a locked thread was unlocked - often at silly o'clock in the morning - and we all saw a new ident or graphics refresh for the first time and struggled to watch it and keep up with the hundreds of posts here at the same time!
All the best for whatever you do next!