There are five season finales tonight — all for shows that have been renewed for next season, so there will be resolutions to whatever cliffhangers they leave us with.
• College baseball (6 p.m., BYUtv): Portland at BYU
• "Grey's Anatomy" (7 p.m., ABC/Ch. 4): A dangerous patient escapes his hospital room, putting the doctor's lives at risk. (Season finale)
• "Masterchef Junior" (7 and 8 p.m., Fox/Ch. 13): The top four cooks create a chocolate molten lava cake; two cooks battle it out for the grand prize. (Season finale)
• "Supernatural" (7 and 8 p.m., CW/Ch. 30): The fight between the American hunters and the British hunters comes to a head; Lucifer battles Sam, Dean and Castiel for control of his unborn child. (Season finale)