Why "as seen" and not "as saw"

[tobehappy]

To say "as saw" sounds strange, but I'm not sure why it's "as seen". For example, "as seen on TV".

For a sentence to use "seen", I thought it had to contain "be" or "has" in some form. Please help!

[Rover_KE]

Welcome to the forum, tobehappy.

'...as seen' is a shortened version of 'as has been seen'.

So you're right as well.

Rover

[allenman]

'...as seen' is a shortened version of 'as has been seen'.

or "as is seen"

Not a teacher

[BobK]

Or 'can be' or 'could be' or 'might have been'... or any other auxiliary verb you choose; the point is that it's followed by a participle ('seen') and not a simple past ('saw'). But I agree with Rover's choice of the most likely - in an advertising context; the advertiser is saying 'this film has been seen all over the world, or by discerning movie-goers, or whatever.

b