Time Warner Cable does not own the Lakers in any way.
They only have the broadcast TV rights to their local games both home & road that serves to their own customers and other TV providers in the Lakers DMA zone.
The Lakers as a sports franchise are owned by The Buss family, about 20% to 30% to AEG and another small percentage to a Asian billionaire Dr. Patrick Soon-Shiong.
That is correct. It would be good if no cable or satellite company owned channels, though.