Bird spot the difference, boys

IT strikes me that an awful lot of TV shows owe their existence to shows that have come before.

- By MIKE WARD, television critic

For example, would we ever have had Cooking With The Stars if we hadn’t had Celebrity MasterChef, or DNA Journey if Who Do You Think You Are? hadn't happened?

And would ITV’s Dancing On Ice have ever come to be, had it not been for the success of BBC1’s Dancing On A Dance Floor So I've Less Chance Of Breaking My Neck?