In February 2006 Hi-5 filmed a couple of commercials in LA:

"The commercials we just shot in LA with Lance are part of a new ad campaign for Discovery called 'The Race to Replace' Lance. Since he's retiring, Discovery is trying to find a new leader for the cycling team. There's going to be a "race" from LA to Washington D.C. and whoever wins will become the new leader."

"In one of the spots you'll see Hi-5 riding along singing TEAM, when Lance rides up. I won't give it away, but it's rather funny. What we've been told is that the commercials will begin airing in April on ALL of the Discovery networks. I can't wait!"

Update 4/28/06: You can check out the commercials here!