Correct wiring of HD Dish

[Cajun86]

I have Direct TV, with the oval dish on the roof, connected directly to the old cable box and have 4 tvs. Only 2 have HD boxes. I wanted to split the signal from the tv in the master bedroom (easiest cable run) to the pool deck to watch tv outside but would prefer to let the people at the pool watch something different from the bedroom.

What is the best way to wire 5 TVs to the HD Dish?

How can I fix what I have until I can fix it the right way?

Thanks for the help