Hello,
thank you very much for this link. Great televisions and great footage!
Here are some other interesting videos:
The Oldest Television TV still in service. Marconi EMI model 706 904:
http://www.youtube.com/watch?v=N9u5714WyFE
Part two:
http://www.youtube.com/watch?v=lJYCWjt0rkk
German television - mid 1930s:
http://www.youtube.com/watch?v=QhvdARdbQFk
Kind regards,
Eckhard