Maybe you haven't noticed but motson only talks after a play not when the play is being made. for example when a player crosses the ball in, he should say something like "good cross" or stuff like that.
etc...

I hadn't noticed because we here in the USA DON'T GET MOTSON!!!! Oh well . . .

but we here in the good ole USA are able to get Motson's commentary...you just have to find it, as I did :-)