I haven't seen this in ages.
What you have to do to enjoy it is basically forget every damn thing you know about science. Also whatever you might happen to know about things such as on-board radar.
The errors, omissions, and nonsense are absolutely legion here.
But, dammit, it's still great fun!
Those Moonbase purple wigs ...
... where have I seen those before?
Oops! Moon Zero Two! (But of course, Anderson's team did them properly and with their trademark class and perfectionist detail. Do you understand that? -- with a TV series budget they outclassed a movie budget!)
The co-pilot of the SHADAIR SST is Shane Rimmer, best-known as the voice of Scott Tracy in Thunderbirds.
Derek Meddings and his special effects team were at their peak here. Some of the effects are just breathtaking and put what I've seen done with CGI to shame.
UFO Identified 2
UFO Identified 3
UFO Identified 4
UFO Identified 5
If you like what you've seen, go buy the UFO TV series DVD boxed set! It's cheap on ebay.