Ditto the excellent rr programming choices available on DISH TV. RFD's "Trains & Locomotives" has great vintage steam, early diesel (Baldwin, FM, Alco, etc.) electric, and even trolley footages. "I love Toy Trains" for the model entusiast. Tracks Ahead, Voyages (Trains Unlimited) and even some Operation Lifesaver shows.
RE the antenna on roof, all depends on how the particular complexes documents are written, and what state you are in.
True, you cannot be denied 'right to the airways' but....if there is an alternative, such as cable in the building, the landlord may have complied with FCC rulings for 'alternative sources', thus no dishes.
In my particular condo complex in NJ, Satellite dishes are allowed...but ONLY on limited common elements (porch, patio, deck) and can NOT be permanently attached to any of the building structure,(has to be on a free standing pedestal) nor can hole in wall be drilled for the coax.(have to run it through an ajar slider or window) In addition, the dish cannot protrude into the "space" beyond the limited common element, (can't stick out over the railing on deck, etc.) This basically limits the reality of Satellite TV for all but South facing units. This has withstood legal actions.
Bring back the Slumbercoaches!!