It looks like it's more a problem with the source material to me (Eastman film from the 60s and 70s faded like this). TV broadcasters often used to air faded film and/or degraded VT. Often, these were old copies that had gone around other TV stations many times before. To get better copies was deemed cost prohibitive and, anyway, TV broadcasters have never cared about the viewing content so much as the advertisers - the ones who bring the money in.
However, I don't recall seeing anything on TV during the 1970s or 1980s in such shocking quality. Perhaps broadcasters in your local area were especially contemptuous of their audience...?
However, I don't recall seeing anything on TV during the 1970s or 1980s in such shocking quality. Perhaps broadcasters in your local area were especially contemptuous of their audience...?