I can't think of 80s TV without thinking of one of the best aliens to ever grace the silver screen. Gordon Shumway, better know as Alf to the rest of us, crash landed on Earth when he followed a radio signal. Thankfully for him, and us, he crashed into the garage of a middle class family in the burbs that takes him in and hides him away from the government who are intent on studying him.
Throughout the 4 season run Alf is annoying, cynical, gets into way too much trouble,. He is continuously bored, doesn't understand Earth culture at all, and tends to get depressed when he thinks about home because since it blew up, he thinks he's the last remaining survivor of Melmac. All that drama allowed Alf to be so cleverly funny that even when he was misbehaving, you couldn't help but love him. At least I couldn't, especially when he was eating (which was all the time) or when he was trying to eat the family cat (every time he wasn't eating something else.
Eventually all good things come to an end, and Alf is captured by the government and held for 7 long years before he is freed by someone on the inside. Throughout it all though Alf remained one of those characters that despite all his flaws, entertained me and allowed me to fall in love with him.