[Hybrid tellies]

When we lived on the east Lizard coast in Cornwall we were only 50' asl but with a loft 405 line TV aerial we could get clear snow free pictures on BBC1 on ch2 from North Hessary Tor, about 60 miles distance and ITA on ch12 from Caradon Hill, about 40 miles distance. We could get a snowy BBC1 picture from Redruth on ch1. In all the villages along this coastline despite the distances from Caradon Hill and North Hessary Tor there were very few outdoor 405 line aerials to be seen.
During normal or flat conditions you could also pick up the sound from the ITA St Hilary transmitter on ch10.
The fun started during tropo lifts on band 1 you could see Crystal Palace co channeling with Redruth on ch1, with grainy pictures possible from Rowridge on ch3, Haverfordwest or Les Platons on ch4 and Wenvoe on ch5. Slight co channel interference would be caused to BBC1 on ch 2 either from the Caen transmitter in northern France or Holme Moss near Huddersfield.
During the same conditions on band 3 you could get ITA pictures on ch8 from Presely, a three way pile up on ch9 from Croydon, Stockland Hill and Freemont Point, clear snow free pictures on ch10 from St Hilary, and reasonable pictures on ch11 from Chillerton Down on the Isle of Wight.
During summertime Sporadic E opening band 1 would be full of continental 625 and 819 line stations with the local BBC1 being completely swamped out by this co channel interference.
Thinking back its pretty amazing results from just a loft mounted aerial and in such a low location.