You have 4 of 4 known Memorex Video Information System - Games (TOSEC-v2009-05-04) sets

Awesome Adventures of Victor Vector & Yondo, The - Adventure No. 1 - The Vampire's Coffin (1992)(Sanctuary Woods)(US)
Links - The Challenge of Golf (1992)(Access Software)(US)
Sherlock Holmes - Consulting Detective - Volume I (1992)(ICOM)(US)
Sherlock Holmes - Consulting Detective - Volume II (1992)(ICOM)(US)