British TV Kinescopes or Video material

[Joe west]

I am new to this forum so please forgive me if this is the wrong place to post this information.

I am looking for information on the where a bouts of any Kinescopes, Films, videos (Including home taped) or any clips of shows in any quality that may exist anywhere that originated from Britain. Especially interested in Science Fiction stuff. If any of you guys could help please leave me a message.