He is the grandson of 1950s and 60s BBC newsreader Alvar Lidell.
On 26 and 27 October 2010, he appeared on Pointless with his university friend James, where they won their second show and prize money of £1,250. On 24 September 2012 he was one third of the winning team on Only Connect.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|4460||16/10/2007||P||Konstadinos Sfyris||76 – 78||Dorian Lidell||Johnny Ball||Susie Dent||120|
|4461||17/10/2007||P||Dorian Lidell||77 – 61||Jeff Whitaker||Johnny Ball||Susie Dent||128|
|4462||18/10/2007||P||Dorian Lidell||98 – 51||Craig Nicoll||Johnny Ball||Susie Dent||139|
|4463||19/10/2007||P||Dorian Lidell||69 – 48||Darren Mace||Johnny Ball||Susie Dent||130|
|4464||22/10/2007||P||Dorian Lidell||61 – 75||Baz Hunt||Barry Norman||Susie Dent||118|