I don't recall hearing the Seth Efrikan police, but on one occasion in early Summer 1968, one of the 88 set's channels was unusable due to what sounded like a Spanish broadcast station. Solar cycle 20, I guess....
CB could have been really good; however, not long after it became legal it fell into misuse due to kids playing music etc. Still, at least I was once tipped off about an accident on the M40 on my way to Gatwick, so was able to cut across to the M4 / M25 and avoid the delay - thus getting to the airport in time to pick up Her Deliciousness. TMC traffic on SatNav is too unreliable, RDS traffic on FM is too general; however, up-to-date information from truckers on Ch19 worked well when the channel wasn't being jammed by kids. Although you did feel a bit of an idiot having to ask for a "10-13 on the eastbound super slab" instead of "Any traffic hold-ups on the eastbound M40".....
