"Henry, you're Indiana Jones … with cooler toys."
Even though Professor Henry "Indiana" Jones is an established TV character, thanks to 'The Indiana Jones Chronicles', this doesn't count as a Zonk. It's not even a reference to the movies.
Based on his established age in the TV series, (and due to the passing of the actor who played him as an old man), Indiana Jones is now dead. And I think his exploits surely must have gained notoriety long before he passed away - the subject of biographies, novels, perhaps we could even claim that the movies are based on his "real" life in Toobworld.
Of course, we'd have to be talking about the Indiana Jones of the alternate TV dimension in which we'd find 'Sanctuary'.......
And for alls I know, Dr. Helen Magnus probably even knew Indiana Jones. Better than that, I'd bet the fedora that at some point during his younger years, she even bedded him!
Oh, wait. Keeping in mind the Ark of the Covenant and the Holy Grail, maybe it would be better to say she knew him in a biblical way.....