Apple TV very jerky?

I'm trying to stream video (cricket) from my MBP to my TV via Apple TV. On my laptop the picture and sound are brilliant but when I stream it to the TV both sound and vision are very jerky, almost un watchable. Is there some way it can be smoothed out? Is it something to do with the transfer speed via the Apple TV hub?

I think I've resolved my problem. Did a software update on the Apple TV box and all seems well! Glad about that as I want to stream sports ;D