Josh Phillips and Dan McGrath devised tunes for around 150 TV shows, including Strictly and Shooting Stars.
But Josh, 62, said songs are now made on iPhones for £5 and TV bosses do not want to pay big production costs.
The ex-Procol Harum keyboardist added: "If I was to tell you what we got paid to write the theme to Strictly, we would be lucky to get a quarter o...