Sometimes when watching the vugraph there is a partnership with 2 people playing with the same name (ie Canada Wolpert-Wolpert) When you join in the middle of a hand it is not immediatley clear who is declarer. Maybe you can add N or W or E or S to the declarer's name? just a minor gripe offcourse as you can figure it out from the bidding or the lead but it might be an easy option to improve