An audience of 350,000 viewers tuned in to the second Eurovision 2017 semi-final last night.
The average on BBC Four was down 150,000 on Tuesday's first semi-final show, as the remaining contestants for the grand final were selected.
As well as being down on Tuesday, the number who watched yesterday evening is also down almost half on last year's show, which had 630,000 viewers. The Eurovision 2017 Song Contest will air at 8PM on Saturday night on BBC One.
On the main two channels last night, the soaps dominated with EastEnders the most watched show of the night with 5.6 million viewers compared to Emmerdale's 5.4 million and 5.2 million for its two Thursday episodes.
On BBC One, Masterchef's penultimate showing had 49 million viewers while doc The Truth About Sleep matched the News At Ten, both with 4 million viewers.
Over on ITV, Car Crash Britain Caught on Camera was watched by 2.6 million viewers in the 9PM hour while 1.5 million stuck with the channel for the news at 10PM.
Earlier in the day, in the tea time game show slot, Babushka on ITV rebounded slightly from Wednesday's low to 1.3 million viewers while Pointless had 3 million on the other side.
Elsewhere, Great British Menu topped the night for BBC Two with 1.7 million viewers while 1.4 million watched The Supervet on Channel 4, beating the final episode of Born to Kill which had 1.1 million.
Channel 5's night was topped by Nightmare Tenants, Slum Landlords with a million viewers.