Todd and the tunnel, many of the routines and contestants - Ray, Hayley, Beth, Laura, Suzanne, Chris, Danniella, Donal, Bonnie and her constant splits, Kyran, Clare, Jorgie, I could go on... and then of course T&D and the professionals. Edit: And of course Karen vs Jason.
The show went downhill the last few years but I've still thoroughly enjoyed it and will miss it and the forum fun. I hope to see most of the other posters on the other section of the forums.