Welcome to FT, Beaverhausen!
As noted upthread, on-board service will depend on the time of day and route. A midcon redeye will have pre-departure drinks and not much else. A daytime transcon will have full meal service replete with paper menus.
Also, two days prior to the flight you will be able to view the aircraft type on co.com/info. If the flight is on a 737-900ER, you will have complimentary DirecTV at your seat. If on a 777-200 or 757-200 you will have AVOD.