Originally Posted by BIC2
Sorry, my technical knowledge is not at the level of some on this post.
I have a 2012 Panasonic 65VT50 plasma, a top of the line TV. If I set the Google Fiber TV Box on 1080i out, on the TV setting for 3:2 pulldown is Auto and 24p DirectIn is grayed out at 60Hz. Both movie and video look OK.
If I set TV Box to 1080p out the TV 3:2 is grayed out set to Off and the 24p stays same 60Hz grayed out. Both movie and video seem OK.
If I set TV Box to 1080p/24 out, the TV 3:2 changes to Off and the 24p gives me the option of 48, 60 or 96Hz (I have it set at 96). Both movie and video look a bit weird. Movie motion has artifacts and video seems a bit cartoonish. These same settings on Blu-ray are fine.
The TV manual says the 3:2 only works with Non
-HDMI sources. All my sources are HDMI. What settings should I use? Thank you.
It sounds like that box isn't doing a very good job with inverse telecine (IVTC); hence the artifacting. Which apparently is what you're doing when displaying TV content (29.97 fps) with that 1080p/24 setting. For video content originally shot at 29.97 frames per second, attempting to do IVTC is a bad idea anyway, since it wasn't telecined in the first place. For telecined movies originally shot at 24 fps it might be okay, though it's possible the box will get the pattern wrong. The pattern won't necessarily be consistent throughout the program. Blu-Ray of course will look fine, as it's 24 fps (actually 23.976 fps for TV display, but that's a quibble). Really I dunno why your box has that option. Maybe someone can explain.
And I hope I've understood correctly what your settings do. As to that last bit from your manual, I confess I dunno what to make of that.
I'd set it to 1080i or 1080p. It won't much matter which, as the TV will convert 1080i to 1080p internally because that's what the panel can display. If any true 1080p content is available to you (other than Blu-Ray), set the box to 1080p. (I understand DirectTV, for instance, offers ppv movies in 1080p). I presume if you set your Blu-Ray player to 1080p/24 output, your TV will display that correctly at 48, 72, or 96 Hz. Mine does, at 120 Hz. (Even multiples of 24, you see).
Telecine, or pulldown, is done two ways, which are functionally equivalent: 2:3 pulldown or 3:2 pulldown. It just refers to the pattern in which fields are repeated to bring up film content (24 fps) to TV broadcast standard (29.97 fps).
This little picture might help you visualize how it's done, although it's a bit old and refers to NTSC: