When does Why, Charlie Brown, Why? return?

Why, Charlie Brown, Why? is a 1990 American animated television special. It is the 33rd prime-time animated TV special based upon the comic strip Peanuts by Charles M. Schulz. It originally aired on March 16, 1990, and was also nominated for an Emmy. At the beginning of spring, Janice returns from the hospital and tells Linus she has a surprise for him.