What can't the video baseband bandwidth be more than?
3 MHz
Whose high-definition TV service first started trials?
The British high-definition TV service
When?
August 1936
When did regular service start?
2 November 1936
What did high definition originally describe?
A series of television systems
How many lines of resolution did they have?
30
What drove companies and nations to create true HDTV?
Competition
How long did that competition last?
The entire 20th century
What is the most current system?
8K systems.
What was one of the previous systems in this race?
4k
Whas the Baird 240 scan mechanical or electrical?
mechanical
What was it wrongly known as?
Progressive
Which system was electronic?
Marconi-EMI 405
How many lines did it have?
405
Was it interlaced?
Yes
When did the Brits kill it off?
1937.
What country had their own system the next year?
France
How many lines did they have in 1949?
819
Did it have any color?
No
What was the aspect ratio used?
4:3