if its quiet and dark enough the tokay will come out at night to look for food. If youre sure its in the tv you can use adult crix(they make noise) in a deli cup or critter keeper and place it on the floorclose by the tv. I've caught several this way by hearing them bashing into the container with the crix in it with their nose. Youll hear the tap tap tap. Now you can try to catch him, see where it goes and keep from reentering the tv. as long has the tokay was healthy it can survive a lot longer than you would think. also don't be surprised if its moves from the tv to a different location at night when it goes on the hunt. good luck.
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My posts and replies are my experiences only
1.2.15 Tokays
1.4.10 Leos(13 albino)
1.2.0 AFT's(amel male)
0.2.0 Stenodactylus Petrii(Dune Geckos)