F-Plug here in NTSC land.

BNC connectors are used for video-security systems and some pro video setups (because it's faster to hook up but still just as secure).

There are two types of F-plugs. Push-on and screw-on. I prefer screw-on.

Some TV sets use screw-terminals with spade lugs on twin-lead set-top "rabbit ear aerials".

I recently saw a stereo in a hi-fi store that used a PAL antenna jack for the FM antenna (looks almost like an F-plug but the center pin is hollow or something), which I thought was weird. Maybe the manufacturer got a good deal on them?

Trumpy do you have a picture of the Belling-Lee plug you could post?