"For several years she has deluded herself
that I'm some sort of modern-day Raffles,
the gentleman jewel thief."
'Murder, She Wrote'
This fits right into the policy of the Toobworld Dynamic in that he never mentioned any source material for Raffles, and therefore it can be assumed that Denis was speaking of an historical personage just as "real" as he was in Earth Prime-Time.
A.J. Raffles was an "amateur cracksman" created in a series of stories by E.W. Hornung, the brother-in-law of Sir Arthur Conan Doyle. I suppose he was meant to be the flip side of the World's Greatest Consulting Detective. Raffles, sometimes with his friend Bunny Manders, had been seen in several movies and on TV as well. In the mid-1970s he was seen in his own TV series, only about six episodes or so, played by Anthony Valentine.
Having read those stories back during my Sherlockiana phase of that same period, I hope to one day add this series to the library at Toobworld Central.
In the meantime, that tossed-off quote by Denis Stanton serves as a legitimate link between the 'Raffles' series and 'Murder, She Wrote'.