Sylvia (Focus song) on the "Old Grey Whistle Test", along with a number of UK gigs in late 1972, has been crediting with exposing the band and helping the single reach number 4 in the UK Singles Chart. The programme's presenter, Bob Harris, is quoted as saying that the band's appearance was so well received by the audience that the pressing plant for the single was overwhelmed and only produced copies of "Sylvia" for the following week to cater for the demand. Dave Thompson, writing for AllMusic, said that aside from the studio recording, the band's best version of the song was the
Sounds of the Seventies on Sunday 5 April 2009, broadcasting on BBC Radio 2. It runs from 3pm-5pm, and is hosted by former Radio Caroline DJ Johnnie Walker. There was also a BBC2 TV series called "Sounds of the 70s" which compiled 1970s performances from the BBC's music archives, taken from programmes such as "Top of the Pops" and "The Old Grey Whistle Test". This was first shown in 1993, and was rerun on BBC Four in the 2000s. Sounds of the Seventies Sounds of the Seventies was a BBC radio programme broadcast on weekdays, initially 18:00–19:00, subsequently 22:00–00:00, on Radio One during the