Jack Woolgar in the 'Budgie' episode Grandee Hotel.
Guest: Adam Faith 
Jack was porter Luther Benskin at the hotel and is first seen arriving late and using the switchboard to make a call to the hospital ward where his mother-in-law is staying, though he's not as concerned as he pretends to be.
Shortly afterwards, Budgie arrives, and is soon joined by girlfriend Hazell (Lynn Dalby) for a dinner date with Charlie Endell (Iain Cuthbertson) to discuss business. In the reception area's mirror, the flash Cockney can see manager Anthony Valentine and receptionist Sylvia Kay in a moment of secret passion (one of several), while Benskin is blissfully unaware:
But his smile soon disappears when Budgie instructs the randy manager to "give 'er one":

You'll recognise this image, Kelp, from a recent posting at the 'Crossroads Legends in Other Roles' thread.
In this scene, he's just delivered the London couple's luggage and waits for a tip, by the look of it:
Later, Budgie claims the film projectionist he's waiting for hasn't turned up and tempts Benskin with three quid:

"'Ere. Are you a busy man?"
The corresponding image suggests he might just take him up on the offer!:
Original ITV Transmission: 30th April 1971, the final day of T. Rex's six week reign at No. 1 with
Hot Love
Good performances all round in one of my favourite episodes, the last to be shot in black-and-white due to the ITV Colour Strike. Other guests included Peter Sallis, Preston Lockwood, Jack Smethurst (just before Love Thy Neighbour) and two 'Where Have We Seen Them Before?' subjects, Reg Pritchard and Richard Butler (past and future, respectively).