I recognise the signature, The Utterly splendid Heathcliff of 2040 (gasp). That's from one of my favourite episodes of that particular programme.
(Waits for someone to spill the beans).
Hehe!! What an episode that was!! Hee hee hee!! Copernicus! And an alien with a Birmingham accent called Keith.
"When you goooo will you send baaaack/a letter frooom/America/take a looook/at the railtrack/from Miami to Canada"