A DirecTV dish is really only good for DirecTV. For that sat you will need as Rainman stated a dish of 8.5' diameter and a circular feedhorn and lnb with the ability to control the skew of the lnb or one of the BSC 621 units that has a plate you install that permits usage as circular.
I currently am receiving 126 channels from that sat using an 8.5' mesh dish with the BSC-621 lnbf. It is a dedicated dish which means it does not move. It is a fun sat to play with but could equal quite an expense for only one sat. There are other sats near it that are also circular
C band so if the dish was steerable you could use it for more channels.
You did not state your location. You may not even be able to see the sat from yoru location even with the proper equipment. I am in southwest IN.