Very early Singers from the 1850's up until the start of prefix letters in 1900 had two serial numbers.
There is a lot of controversy over why there were two lots of numbers.
Before the decision Our Graham (replaced in the final ITV series by Tommy Sandhu), who was never seen, gave an amusing reminder of each contestant.
but it was eventually hosted by Cilla Black, who already hosted the LWT series, Surprise Surprise.
Blind Date originally ran on Saturday nights from 30 November 1985 to on ITV. The new series began airing on 17 June 2017 in its usual Saturday night slot and is produced by So Television and Stellify Media, a firm part-owned by Sony Pictures Television.
At the height of its popularity in the 1980s, 18.2 million tuned in on a Saturday night.
Black's scouse accent and her catchphrases became familiar throughout the United Kingdom.The show had a format similar to the show known in Australia as Perfect Match or in the US as The Dating Game.