Former coach driver David Palmer rescued the sheep, which he calls Nick Boing, three years ago, when he was just a newborn, reports the Daily Mail.
The 53-year-old found the sick lamb in long grass on a trip to a nature reserve with his partner Caroline Clements, 54, and their 13-year-old son Nathan.
"There were no other sheep about so we picked him up," he said. "I didn't know anything about sheep so I took him to the nearest farm and left my name, but nobody contacted me and he came with us.
"Caroline had a baby bottle left from when Nathan was little so we fed him some milk and within an hour he was running around."
The family twice tried leaving Nick with farmers, but he refused to go near other sheep and would not settle.
Now he has his own purpose-built bungalow, complete with a carpet and windows, in the family's back garden.
But the 22-stone ram prefers to spend his evenings watching television in the living room, so he head butts the cushions out of the way and settles down on the sofa.
Nick's nightly TV sessions usually end around 11pm, when he is given a swede or an apple and is ushered outside to sleep.
"He's part of the family," said Mr Palmer. "He's more intelligent than your average sheep that's stuck in a field. He's in the house and in the car and meeting people. He's good company and he knows what's what." (Daily Mail)