How expenisve was a black and white tv set in late '70's and early '80's

[Colly0410]

Up to the 1970's most working class people here in England rented their TV's, often with a coin meter on the the back, my parents were like this. In 1972/73 they bought a Sony KV 1800 colour set that cost nearly 300 pounds, they also received a free Elizabethan T12 black & white portable that I still have. When going colour here you had to pay for the TV plus a colour TV licence that was more expensive that a black & white licence & had to be renewed every year...