The Prince of Darkness Affair (1) - S4-E4
Revealing mistake: While Solo is on the phone at the airport, the same female extra passes him twice. Both times, she's wearing the same green dress, but the second time, her hair is re-styled and she's carrying a different suitcase. (00:11:10)
Answer: He must have ridden in an Eaton's store elevator while he was in Canada at some point. For some reason, this elevator reminds him of it. The show's original concept had Solo being a Canadian, so this may be a minor nod to that fact.
raywest ★