TBH I'm bloody pissed off at discovering there were two. We've always watched the NORAD one and it was part of the Christmas Eve ritual. DS2 (now 8) did believe in FC but i think he's now v sceptical. DS1 now 12 hasn't believed for a few years but I think he likes to humour me.
However this year I put on the NORAD one and start shouting out the destinations. DS1 is on the google one and all the destinations and locations were different. Really spoilt it for me and if DS2 had any doubts they've toatally been confirmed now............... 