Gemini Air with satellite account

If I purchased a Gemini Air over ebay and hooked into an HDMI port on my TV can I sign in with my directv credentials that I use to check my account or the downloaded directv ap on my firestick.  Will it work?  It seems like it should as when I downloaded the directv app off firestick and signed in it worked for that to watch directv over yhe internet vs. my satellite receiver.