Visit briefly for a bit of TV? (4,2)
I believe the answer is:
look in
'visit briefly' is the definition.
(I have seen 'short visit' mean 'look in' so perhaps 'visit' could also mean 'look in'; 'briefly' asks for a short form)
'bit of tv?' is the wordplay.
I cannot quite understand how this works, but
'bit' could be 'o' (resembles 0, a binary digit or bit) and 'o' is located in the answer.
'of' could be 'o' and 'o' is located in the answer.
This explanation may well be incorrect...
'for a' acts as a link.
Can you help me to learn more?
(Other definitions for look in that I've seen before include "Make a short visit" , "Chance to participate" .)