Eric and Peter Sellers were the original workmen pencilled in for The Plank, but Sellers had to jet off to Hollywood for a starring role he could not refuse. Eric writes in his autobiography:-
"...I was in the doldrums on a sailboat. Who could possibly replace Peter Sellers? But again I metaphorically lifted the dustbin lid and there was a yellow gleam of a daffodil. A name flashed in front of my mind, and two days later Tommy Cooper reported for duty. He was to take over from Peter and what an inspirational choice it was."
Taken from "If I Don't Write It, Nobody Else Will"...
It's a great read. (Eric won't mind me saying that).