RCA XCD1-5488 is most likely a typo.
Searching discogs there are loads of Starship releases of this particular album ending 1-5488.
There are also many with CD1-5488 but none with XCD1-5488.
It's clear it has the exact same cover as
Starship: Knee Deep in the Hoopla (1986) [CLD-86-001] and the actual LD always was pressed in Japan but the catalogue number they have shown is wrong.