Interlacing and channel bandwidth

[NewVista]

Not sure what latest ABC policy is re-720 but my set indicates local affiliate has switched to 1080.
They must think 1080 looks better for local news & commercials or it could be expedient for equipment standardization.

But since 1080i/60 PsF = 1080/30p (not bad) (no intra-frame motion smear)
I think 720/60p is in trouble

[Penthode]

Originally Posted by NewVista

But since 1080i/60 PsF = 1080/30p (not bad) (no intra-frame motion smear)

Certainly since temporal sampling is not spread over two fields, rescaling should be easier. That is unless adaptive interpolation in convertors recognize as much.

I think 720/60p is in trouble

Maybe. Newer 1080p imager cameras rescale to 720p well which brings about substantial improvement in the resolution of the picture. Some of the earlier 720p cameras were really quite bad and made the picture soft.

But it is now late in the game. The broadcasters are now, after many years, entrenched in their formats. Only ABC affiliates are rescaling at emission. I think broadcasters will mostly remain as they are until the next big change to 1080p and beyond.

[NewVista]

Originally Posted by Penthode

.. Newer 1080p imager cameras rescale to 720p well which brings about substantial improvement in the resolution of the picture. .

You raise a good point, how 720 benefits, Kell-factor-wise, because of 2mp cameras & displays at home.
And deriving 60p from same imaging chips (which would also send 30 PsF for 1080 - we hope)