What's on TV Tonight: January 23
House 7-8pm, FOX. House and his team attend an Alzheimer's patient who suffers a violent temper after a drug trail and a patient of Wilson's claims to be in a chaste marriage.
Alcatraz 8-9pm, FOX. When a child killer is the next prisoner to reappear, the team is in a race to recover him before he takes an innocent life.
Castle 9-10pm, ABC. A famous dog trainer's murder could be connected to a reality TV star.