History of watching TVs
television has been in people's home since the 1930s, but our way of watching tv has changed significantly over the years. in the 1950s, families that had tvs, only had one tv set and three channels to choose from. nowdays, we can watch a tv show on many different devices, anywhere and at anytime of the day or night. consequently, our generation is watching tv more frequently. than any other generation before.
In which decade did families typically have only one TV set and three channels to choose from?