Viewers have urged the BBC to bring back Goodnight Sweetheart after the one-off return was deemed a huge success.
Nicholas Lyndhurst reprised his role as time traveller Gary Sparrow in Friday night's revival of the British sitcom.
The special BBC1 episode - written by original creators Laurence Marks and Maurice Gran - beat the opposition in the ratings with 3.7 million viewers (19.5% share) and a peak of four million.
Gardeners' World on BBC2 was watched by 2.4 million, Lady C And The Castle on ITV attracted 2.2 million and Eight Out of 10 Cats Does Countdown on Channel 4 got 1.6 million.
Young Hyacinth, a prequel to Keeping Up Appearances, which was broadcast straight after Goodnight Sweetheart, was watched by 3.4 million viewers, a peak of 3.5 million and a 17.8% share.
No decisions have yet been made about making a full series of the sitcom, commissioned as part of a season of one-off specials celebrating the heritage of BBC comedy.
Both shows received a warm response from fans following the return of Are You Being Served? which was panned by viewers, and Porridge.
Nicholas's former co-star in Only Fools and Horses, John Challis, was among the viewers who enjoyed Goodnight Sweetheart.
John, who played Boycie in Only Fools and Horses, wrote on Twitter:
Good to see Nick Lyndhurst doing what he does best.#GoodnightSweetheart
-- John Challis (@BeingBoycie) September 2, 2016
Comic Jason Manford also heaped praise on the episode.
Just caught up with #GoodnightSweetheart on BBC1. Would be surprised if that's not a full series soon. Nice to see 'em back.
-- JasonManford (@JasonManford) September 3, 2016
Goodnight Sweetheart ran for six series on BBC One.
Nicholas last played Sparrow, a former TV repairman and accidental time traveller who leads an extraordinary double life, 17 years ago.
Other fans also called for the return of the show.
-- Ben (@Benjysays) September 2, 2016
If the BBC don't commission a new series of #GoodnightSweetheart, they're crazy.
-- Chuck Thomas (@chuckthomasuk) September 2, 2016
Viewers also praised the performance of Kerry Howard as a young Hyacinth in the prequel to Keeping Up Appearances.
Derren Litten, who wrote the return of Are You Being Served?, approved:
-- Derren Litten (@DerrenLitten) September 2, 2016
With some work here and there, that could be a cracking Sunday night comedy series #YoungHyacinth
-- Guy Lambert (@GRALambo) September 2, 2016
wait is Kerry Howard actually Patricia Routledge from the past??? This is insane ??? #YoungHyacinth
-- Ryan Love (@RyanJL) September 2, 2016
Earlier this year, Keeping Up Appearances' star Patricia Routledge suggested that she was unimpressed with the idea of the corporation revisiting some of Britain's best-loved TV series.
"Why are they doing this sort of thing?" the actress, 87, was quoted as saying. "They must be desperate."
Kerry described her response as "sad", saying: "I think she should be incredibly flattered that the BBC are paying homage to all these great shows."