Typically, you will get the best signal by running all video direct to the tv.
You can also run the video into the receiver and then run a single cable (s video or component depending on your receivers capabilities) to the tv. This will minimize switching inputs on the tv when changing video sources.
I run s video's to my receiver from my tivo and dvd player and then a single s video from my receiver to the tv.
I also run a component video cable from my progressive scan DVD player direct to the tv so I can switch to progressive scan.
The DVD player is, in essence, hooked up with 2 connections. This ensures that if someone else is using it, they will get a picture without changing inputs on the tv.
More than likely, an HD box cannot route through your receiver and will have to go direct to the tv.
Hope that helps.
You can also run the video into the receiver and then run a single cable (s video or component depending on your receivers capabilities) to the tv. This will minimize switching inputs on the tv when changing video sources.
I run s video's to my receiver from my tivo and dvd player and then a single s video from my receiver to the tv.
I also run a component video cable from my progressive scan DVD player direct to the tv so I can switch to progressive scan.
The DVD player is, in essence, hooked up with 2 connections. This ensures that if someone else is using it, they will get a picture without changing inputs on the tv.
More than likely, an HD box cannot route through your receiver and will have to go direct to the tv.
Hope that helps.