Categories the same as in 1960: 1, 2 or more, none. Respondents were to include sets of all kinds that were located in the unit and were in working order--floor models, built-in, table, portable, combination with radio or phonograph.
In 1970, a further question asked whether the household had a television set equipped to receive UHF broadcasts (i.e., channels 14 to 83). Respondents were to include sets which could be tuned directly to channels 14 to 83, sets which could receive UHF broadcasts by means of a converter, or through a community (CATV) or master antenna which receives incoming UHF signals and transfers them to a vacant VHF channel (2 to 13).