The First Minister Alex Salmond and Better Together leader Alistair Darling will go head to head for the first time in an independence referendum debate tonight.
The hour-long debate will be broadcast live on STV, the Scottish holder of the ITV franchise.
The live programme, taking place in front of an audience of voters at the Royal Conservatoire in Glasgow, includes analysis from expert guests and reaction on social media.
Presenters Bernard Ponsonby and John MacKay will be live on STV from 8-10pm
The debate is scheduled to only be shown on Scottish TV, but Sky viewers can add STV via the “Add Channels” feature in the Options section of their EPG.
The SD version of the channel is at frequency: 10906, polarisation: vertical, symbol rate: 22000, FEC: 5/6, while the HD version can be found at frequency: 10994, polarisation: horizontal, symbol rate: 22000, FEC: 5/6.
The debate will be shown live online to Scotland, the rest of the UK, and the World via the STV Player player.stv.tv/live
(Frequency info via a516digital.com)