The following have been absolutely brilliant in helping to make this website what it is today:

Brian Clark, Cecil Korer, Guido Pancaldi,
Mike Swann, Geoff Wilson and Glynne Wilson

Trevor Adair, Andy Aliffe, Sheila Antrobus, John Archbold, Steve Arnold,
David Ashurst, Roger Bancroft, Russ Barker, Ian Beard, Ischa Bijl, Koen Braem,
Sheena Brierley, Des Brittain, Antony Brown, Bill Brown, Mark Chaloner,
Dave Cochrane, Gavin Collinson, Brad Cooper, Tim Cooper, James Cowan,
Simon Coward, Rui Craveiro, Rod Crockford, Chris Cuellar, Matt Dale, Larry Dart, Alan Day,
Robert Dee, Tim Deeks, Cad Delworth, Julien Dessy, Sébastien Dias,
Chris Dickinson, Martin Diplock, Malcolm Ellis, Steve Ellison, Tim Emanuel,
Andy Garner, Richard Farnham, Michel Filannino, Hartmut Flatten, Kevin Fletcher,
Hazel Ford, Pino Frisoli, Andy Geneux, Nick Goodman, Graham Gourlay,
Andrew Gray, Sarah-Jane Gray, Ian Greaves, Michael Griffiths, David Hamilton,
Neil Harvey, Alys Hayes, Steven K Hearn, Péter Horváth, Gary Houghton,
Dicky Howett, Ian Hughes, Sandra Hughes, Denis Kirsanov, Eberhard Kleinrensing,
Konstantinos Kolovos, Nicolás E. Korzan,
Thomas Kreidl, Richard and Sylvia Lancaster,
Paul Leaver, François Lombard, Dave Lovering-Roddis, Bernhard Luerssen,
Gianni Magrin, Christian Masson, Val Matthews, Ian McAdam, Adam McLean,
Philippe Minet, Frogg Moody, Dave Moore, Andrew Mora, Christos Moustakas,
Richard Nash, Gareth Nickels, Mike Noon, Brian K. Outlaw, Jean P., Chris Perry,
Mike Peters, David Piper-Balston, Laura Reed, Didier Robaldo, Gavin Roberts,
Ian Rodger, David Laich Ruiz, Matthew K. Sharp, Tony Smith, Richard Stannard,
Neil Storer,
Elly Streng-Dunnewold, Simon Sturdy, Michael Swaffield,
Mike and Val Swann, Ian Taylor, Susan Taylor, Frédéric Tonton, David Townson,
Mauro Tozzi, Marko Voštan, David Walker, Julian Watson, Norbert Wiest,
Terry Wing, Peter Wootton, Trent Wursthorn, 'UKgladiatorsfan' on YouTube
and the staff of the Westminster, Colindale and Manchester reference libraries.

Thank you all!

Research Sources:
Radio Times magazine, 1950s-present
TVTimes magazine, 1997-present
It's A Knockout Annual 1977, World Distibutors, 1976
The Times/The Sunday Times, 1950s-present
The Penguin Television Companion by Jeff Evans, 2001
2ZY to NBH by Ian Hartley, Willow Publishing, 1987
Radio Times Guide to TV Comedy by Mark Lewisohn, BBC Worldwide, 1998
40 Years of British Television by Jane Harbord and Jeff Wright, Boxtree, 1992
Halliwell's Who's Who in the Movies ed. John Walker, 2001 
Kaleidoscope guides and their excellent TV Brain resource
BBC INFAX / Genome systems
British and international newspapers and magazines
JSFnet websites