The Magic School Bus S04 E07 "Sees Stars"
On Dorothy Ann's birthday, she has, unfortunately, been sick and has to stay home. The class does not know what to get D.A. as a present until they see Horace Scope (Dabney Coleman) on S.S.N., the "Star Shopping Network," who is selling the stars for seven dollars each. Tim reasons that if every student puts in a dollar, they will be able to buy Dorothy Ann a star and name it after her. However, Keesha refuses to put in her dollar, as her grandmother was once duped by a similar organization, the Home Mopping Network. Therefore Ms. Frizzle takes the class on a field trip to see the three stars being sold by Horace Scope for themselves. The class encounters a T Tauri star, a yellow dwarf with two exoplanets, and a red supergiant star. Note: Dorothy Ann is the only student to have a birthday in this episode.