So Jonathan is now joined by Floella Benjamin as co-host; the special guest is Rolf Harris, who demonstrates his didgeridoo, wobble board, and painting skills; and the stars of Rainbow (1972) have ...

The wobble-seam ball, though, throws a spanner in those works. It is bowled with what coaches call a "dirty seam", which wobbles this way and that in the air. Batters have no way to tell which way the ...