Re: Non issue
In the UK, for broadcast material (TV shows), the copyright period is 50 years from the year of first broadcast, therefore anything broadcast 1966 and earlier has expired. For films it's rather harder to calculate as it's based on the death of the directors, authors, etc plus 70 years, therefore it has to be judged on a per film basis. However it does mean that some true classics from the 1930s are generally available now.
In the US, however, the Disney Corporation paid to change the copyright law to protect one of their most boring, but for some reason iconic characters, Mickey Mouse. Doubtless they'll do the same again in another 15 or so years to extend the US copyright period for films further.