Sir Billy Connolly will be honoured with a lifetime achievement award, while screenwriter Jack Thorne will deliver the MacTaggart lecture as the Edinburgh TV festival gets under way on Monday.
The first day of the virtual festival will also feature author Neil Gaiman in conversation with director Douglas MacKinnon.
Thorne will draw attention to the “glaring problem” of the treatment of disabled people in the flagship session of the festival.
Thorne, who has won five Baftas, has written for TV series including His Dark Materials, Kiri and The Virtues, and films including Enola Holmes, The Secret Garden and The Aeronauts.
The 42-year-old also wrote the script for Harry Potter And The Cursed Child, the Olivier and Tony award-winning play based on the wizarding books by JK Rowling.
The MacTaggart lecture has formed the centrepiece of the Edinburgh International Television Festival since 1976.
Thorne, who developed a condition called cholinergic urticaria – which makes sufferers allergic to their own body heat – as a young man, has said he will use his speech to highlight disabled representation on screen.
Sir Billy will be awarded with the Edinburgh Television Festival’s lifetime achievement award for his contribution to the industry and will be interviewed by his wife, the writer and performer Dr Pamela Stephenson Connolly, as he reflects on his extensive body of work and successes within the industry.
The virtual festival will also feature appearances from Hollywood star and Hamilton writer Lin-Manuel Miranda, Greta Thunberg and Whoopi Goldberg, while comedian London Hughes, will be this year’s Alternative MacTaggart speaker.
There will also be a special session with Boris Johnson and Dominic Cummings’ Spitting Image puppets coming face to face, as well as the traditional appearances by the commissioners of the TV channels.
The Edinburgh TV Festival runs until August 26.