I like rule 23! Seriously, is there a list of rules somewhere? Like these:
The projector is recessed into the wall behind the seating. That run of cable is like 8 feet from the receiver/DVR, which is also behind us. The flat panel is cabled up through the attic and down through the wall behind the flat panel. That's like a 30 foot run. Has custom cables made up by a local AV outfit. Also wall plates for all AV connections. Very clean (hidden) cabling. Is there a rule that mandates clean cabling?
So with the projector upgrade that "splitter" will only have a single output, but that flat panel was working fine when it shared the output with the projector so it's getting around twice the signal now. No worries.
To run HDMI to the flat panel would be a huge job, pulling cables through the attic and wall. Fortunately, I left a length of twine running from one end to the other, and through the wall, so that'll help pulling the new cables with a new length of twine. That should be a rule too. Always pull some twine with the cables.
But the flat panel looks just great as is, so not a lot of motivation to do that conversion.
Which leaves me with another question: Whatever I do, I'm gonna need an HDMI splitter coming off that DVR. One HDMI runs to the new projector (about 8 feet), and the other will run 6" to the HDMI-to-component converter (which is powered), after which the component runs 30 feet to the flat panel. I see there are both passive and active HDMI splitters available. I'm guessing that since the flat panel looks fine now, and the HDMI run to the projector is only 8 feet, I could get by with a passive HDMI splitter. What do you think?