For me, I lost interest when Dr. Who ceased to be a Gandalfian figure, but His Time-Lordliness is of enduring relevance when it comes to copyright.

Legal blogger, IP lawyer and of special counsel Nils Versemann of the lawfirm Macpherson Kelley discusses the legal impediments towards restoring the lost (in space and time) episodes of the Dr. Who episodes to posterity,

Possibly, I had too much fun with that last sentence for a good student of Sir Ernest!

In short, the BBC failed to preserve certain episodes of the series. Ironically, some of those reasons were copyright-related. Now, the missing episodes are of great value, and it turns out that a few episodes are not altogether lost, but in the hands of private collectors.

The rub is that those private collectors might be barred by copyright laws from sharing what they might have scavenged from BBC dustbins or recorded at home from the TV (legally or otherwise) for private enjoyment.

  "This means that when the Doctor Who episodes were copied from the TV broadcast in the 1960s, they would have infringed copyright in that broadcast and the underlying cinematograph film.

There is an exception under section 111 of the Australian Copyright Act 1968. This includes making a recording of the broadcast for private and domestic use to watch at a more convenient time...[ ] However, that exception is taken to have never applied if a further copy is made..."

For the sake of posterity, and the Dr. Who canon, Nils Versemann suggests a pragmatic solution. 

"... the BBC should consider an amnesty to private collectors who historically made copies for their own personal use. The BBC’s objective is to receive these precious copies, rather than deal with somebody who is pirating them for profit..."