Sales of loose pears at the supermarket's branches increased by some 38 per cent after contestants on the show had to make a dish of wrapped poached pears.
The retailer also said "plentiful rain alongside many hours of sunshine has produced some of the biggest and sweetest English pears in several years".
Waitrose will shortly begin selling a "Best of British Pears" four-pack along with a changing selection of seasonal English pear varieties, starting with Concorde.
Waitrose pear buyer Greg Sehringer said: "It's a word generally associated with wine, but thanks to the recent weather this is a real vintage crop."
Meanwhile, Waitrose technical manager for agronomy Alan Wilson has admitted that at the retailer's own Leckford Farm in Hampshire: "We have taken out acres of apples - we couldn't make them pay."