What Roy has posted is NOT a good OPTION for an ANTENNA USED with the DISH service. DirecTV uses only one satellite to provide ALL of the StAnDaRd Def. programming so you could use that KIND of an antenna with DirecTV without much issue (except no HDTV).
For Dish, you NEED a multiple LNB antenna or a dome style auto pointing antenna for reception of all of the Dish programming.
You need to figure out what's important to you. If you want to make it cheap and easy that means you need to have a DTV account and a simple to setup antenna but you will not get any of the HDTV programming. If you must have HD then you either need a Winegard Trav'ler roof mount unit or a tripod based home antenna for DirecTV. However, you could use a dome style automatic with Dish Network or manually point one of their home style multiple LNB antennas.
Confused? Let us know.