Far be it from me to buck the trend here, but I'm going to actually comment on the link... I apologise in advance.
Didn't they prove a while back that he did say the "a" in the sentence and that it happened at the same time as a disruption in the transmission?
This is one of these things that seems to come round every so often. Next week, proof that the ball did/didn't cross the line for the third goal in the 1966 World Cup final.