MPEG4, 5LNB and Diplexing

As you guys can see, I'm looking into upgrading.

I have 2 H20s, and 2 D10s. In one of the rooms with a D10, I have the line diplexed with my cable modem running on it.

I know diplexing is a no-no with MPEG4. However, since I have no intention of putting an HDTV in here anytime soon, is it possible to diplex this line since it will not be showing any of the MPEG4 content? I have access to all 4 lines outside, and only the line coming in here is diplexed, while the rest of the lines are straight runs.

ebonovic said:

If you diplex it after the multi-switch or the dish, you will be fine.

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Thanks.. this is what I was going to do.. Run the 4 down from the roof, and when they get to the side of the house, I usually "put" them onto the 4 lines heading into the house.. 3 with male to male connections, and 1 with the diplexer...