The Trav'ler is intended for roof mounting only, and expect it to cost around $2000 installed. We're on Dish not DTV, but we've found our tripod mounted triple satellite dish has enabled us to get signals in every campsite we've been in so far, regardless of the tree cover. It typically takes me 15 minutes or less to set up the dish and aim it. The freedom to select sites for the view or proximity to park amenities and features makes the time spent well worth it, rather than being restricted to sites with a clear sky view to the south from the coach roof.
Just one recent example:
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