When it comes to the Angry Anderson thing, I wonder if there could be issues anyway regardless of Craig McLachlan? With the Neighbours clips, could it fall victim to the same rights issues as the Grease songs and the Thorn Birds theme?
That won't be the case. In the case of Grease, and Watership Down, they specifically used clips of the film and they were credited as such in the credits - "Grease extract courtesy of CIC/Paramount" etc. By this point there were now official videos which were produced expressly for this purpose. If you're going to have issues with Suddenly you'd have issues with pretty much every episode - Take My Breath Away got shown the other week, for a start.
They also used Neighbours clips on that said same 1988 clip show on BBC4 the other week, which had a budget of about 5p.
Not that I think speculating over whether they will or won't show clips of Craig McLachlan ages before the case even goes to court is very useful, mind.