Scottish Television and Grampian Television have opted out of covering the Scottish Parliament elections results live on 1 May.
Executives at the two commercial channels decided to scrap plans to broadcast the results through the night because they believe the audience would be too small.
The decision means that only BBC Scotland will show live coverage of constituency declarations and the final outcome of the poll. Scottish local council elections are also being held on 1 May.
In the historic 1999 Scottish Parliament elections, STV, Grampian TV and BBC Scotland all broadcast the results live.
This year STV will broadcast a programme for half an hour after the polls close and will return to the election the following morning.
BBC Scotland will have 12 outside broadcast units around the country to cover the counts and declarations into the early hours.
STV coverage of the build-up to the election will be headed by Bernard Ponsonby.