The most common and most likely answer to this crossword clue is the 9 letter word ON-SCREEN
I've seen this crossword clue in Financial Times
O
N
-
S
C
R
E
E
N
Buddy explains!
The straight part
We know that "displayed televisually" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case displayed televisually = on-screen.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ON-SCREEN mean?
ON-SCREEN adjective- As seen on a screen (as of television, film, or computer) rather than in real life.