When he was dressed he went down the hall into the kitchen. The table was almost hidden beneath all Dudley's birthday presents. It looked as though Dudley had gotten the new computer he wanted, not to mention the second television and the racing bike. Exactly why Dudley wanted a racing bike was a mystery to Harry, as Dudley was very fat and hated exercise -- unless of course it involved punching somebody. Dudley's favorite punching bag was Harry, but he couldn't often catch him. Harry didn't look it, but he was very fast. (Harry Potter and the Sorcerer's Stone)
Does the highlighted part mean Dudley had got two televisions now (1), does he had replaced the first his own one (2), or does he got his own television for the first time as the second television in the family (3)?