Lately I've been taking advantage of the fact that UA can email me itineraries. It's so much better than:

CSR> Okay, do you have a pen and pencil?
ME> Yup!
CSR> Okay.. Departing (starting a 8 leg itinerary)
.
.
.
CSR> Got that?

Anyway, I was noticing that the HTML email that arrives has CONNOISEUR whereever business class should be written. IIRC this was introduced in the early 90s as part of the TWA LHR operation, but went away just after UA and the other 4 charter *A airlines formed their alliance.

Somewhere there's a stray DB2 table that needs updating...