series 4 of The Sweeney. Radios Another star of the show was the Pye PF8 UHF handheld radio, a genuine police radio of the times and not a prop as many believed, the radio actually more resembled an electric shaver of the times than a radio although it was a design well ahead of its time with an inbuilt antenna, dual microphones (top and bottom of the radio) these radios are highly sought after by fans of the show and radio hams who convert them to work on modern frequency bands. Opening titles The opening credits for the first series (broadcast 1977–78) starts with a Rolls-Royce speeding onto and through an industrial estate before skidding to a stop. As the Rolls-Royce enters and goes through the industrial estate, the title "The Professionals" appears on screen. Cowley, Bodie and Doyle get out of the vehicle and Bodie and Doyle then go through an assault course while being timed on a stopwatch by Cowley. It ends with them going through set windows and a close up of the stopwatch being stopped and Cowley standing by the car motioning them to get in. Just as the theme tune ends they get in the car and it drives off. The first two broadcast episodes of the series – "Private Madness, Public Danger" and "The Female Factor" – feature a voiceover by Cowley over the top of the title sequence but this was removed from the third episode ("Old Dog With New Tricks") onwards. When the first series has been repeated, all episodes (bar "When The Heat Cools Off" and the usually unscreened "Klansmen") are shown using the more familiar title sequence employed for the second series onwards. This means that the Cowley voiceover is never married to the correct visuals on the repeat broadcasts of the episodes featuring it. For the remaining series the opening titles started with a car driving through a tinted window before cutting to various shots of the main characters running and Cowley getting into a car before putting down a car phone in the back seat. We then see the green title card with CI5 written in big, black, stencil-style letters, "The Professionals" written in white over it and three yellow squares on the right hand side, each containing a silhouette of one of the three principal actors. It then zooms in on the top square and we see