BBC Television Interference Suppression Demonstration Film

[aptsarchive]

Couldn't agree with you more. How nice it would be to walk in to a radio dealers like this now days!

[raymondgarfield8]

The jolts of memory this film clip created. I grew up in Edgware. The service and expert help one got in mid 20th century was so much better.

[wa5iyx]

When I was in the UK 1952-54 as a USAF dependent we didn't have our own TV (London at c. 70-mi may've been the closest station then). We got to see some of the Coronation coverage at a set in the NCO Club at RAF Shepherds Grove. Anyway, I still have a Comet comic book issue from that era where a sci-fi story has interference to a TV (from a UFO) and a character comments that they were too high above the street for it to have been from an auto!

[yue107h]

I remember this alright. In those not many had cars. In fact I have a 1946 Hillman Minx dhc as featured and this is brought back the nostalgia and charged me into progressing it. Brilliant. Thank you!!

[aptsarchive]

@yue107h Glad you enjoyed the upload and that it brough back good memories

[MIKON8ERISBACK]

How does some idiot smashing a TV screen cause someones car to explode? Was it an EMP or something?

[MIKON8ERISBACK]

Those European television broadcasting systems, especially the now obsolete 405 line and 625 line systems were always inferior in my opinion.

[gentil79]

looking at the shop assistant in this footage, it reminds me how good was the service compared to today's B&Q and Halford

[mubd1234]

3:47-That guy now has to spend his year's pay, 5 pounds, on a new TV.

[LDC02]

i need one of those for my austin mini.

[shlomzion]

Great! I remember watching this everyday when I was a child. At the time, I had no idea what they were talking about. But I still remember "What about your car?" and the man smashing his T.V.!

[vinylseat]

What a great film! The problem was not so much that we used positive vision modulation. Unfortunately the ignition coil in most cars of the period had a natural tuned circuit around 45mc/s the vision frequency of the original Alexandra Palace transmitter in London. The A.M. sound easy demodulated the strong pulses from the spark ignition, [41.5 mc/s]hence the 'pops'. The further you moved up band 1, the less of a problem it became. Happy days! J.

[cometogetherband]

I live on a busy main road & I still get interference from car engines!

[redsnapper1959]

The shop featured in the film was in Edgware, Middlesex, corner of Edgwarebury Lane and Station Road.

[aptsarchive]

That's correct if was Norwest Services Ltd (telephone STOnegrove 6655), and is now a dry cleaner's.

[DavidRayner1947]

I loved being able to see this again after so many years. We first had a television in June, 1952 and the daily programmes on the BBC in those days didn't start until the afternoon. The morning was taken up by trade test films such as this, which was shown every morning. Although I was only five years old in 1952, I still remember the viewer throwing an object at the screen and smashing it and the driver outside being showered with glass as his car blew up. Those were the days.

[spender1951]

Great to see the old cars from my youth!!.Yes this problem was bad in Britain in the fifties because we used 405 line "Positive" modulation which meant that the interference was bright white specs whereas when we changed to 625 lines in the late sixties the modulation was changed to "Negative" which meant that the specs were now black and much less noticeable....

[northernsmile]

The innocence & quaintness of by-gone times. Its great in an eccentrically outdated kinda way.

[aussiebeachut]

Brilliant.. thanks for posting.

Was this a problem that only occured with the 405 line VHF broadcast system in Britain ?

I don't ever recall problems with TV interference from Motor vehicles in Australia.

Although Australia went to air with 625 line Black and White from 1956.

[dowdingnet]

Superb! I never thought I'd see this one again!

[aptsarchive]

Glad you enjoyed it - it does make for fascinating viewing!!