For all the tech heads out there, combing through the remnants of the defunct Sunday’s site via Wayback Machine might yield something. If TCC USA did stream their content online, perhaps archived digital traces exist. Let's also not discount old-school satellite forums where TV enthusiasts shared recording tips—somebody out there …

Fascinating quest! While I haven’t come across 'Space Quest', I’d suggest looking into university archives or maybe even contacting the screenwriters or producers directly via social media. They sometimes keep personal archives of their work which never made it to the mainstream. Good luck, and keep us updated!