It was still available in December when I flew TPE-HKG but then again, that was the old looping non-AVOD system.

A bit off topic but HKIA seems to have adjusted the Flight Information Display Boards, gate screens and baggage carousel screens to make it so that the operating airline flight number always shows while only the codeshares change (if multiple airlines codeshare). I personally like it since I used to constantly hear people asking why the flight number is different.