Ancient god of TV? (3)
I believe the answer is:
set
This clue is a double definition.
'ancient god' is the first definition.
(I've seen this before)
'tv?' is the second definition.
(tv is a kind of set)
'of' acts as a link.
(Other definitions for set that I've seen before include "Customary < scenery < a TV < series" , "Scenery etc. for the stage" , "Put down the group of games" , "What the Sun regularly does" , "Become stiff like jelly" .)