At 31.18, when Ted and doc are talking a tractor can be seen on the far side of the pitch but is missing when the camera angle changes then, after the doc rides off, the tractor can be seen on the near side of the pitch. It wouldn't have been able to cross the pitch in that time at the speed it was travelling.
At 24.17, when Roy is in the make up room, the switches on the double electric socket are switched on despite there not being anything plugged into them.