Since the mid-1980s, Spielberg has increased his role as a film producer. He headed up the production team for several cartoons, including the Warner Bros. hits Tiny Toon Adventures, Animaniacs, Pinky and the Brain, Toonsylvania, and Freakazoid!, for which he collaborated with Jean MacCurdy and Tom Ruegger. Due to his work on these series, in the official titles, most of them say, "Steven Spielberg presents" as well as making numerous cameos on the shows. Spielberg also produced the Don Bluth animated features, An American Tail and The Land Before Time, which were released by Universal Studios. He also served as one of the executive producers of Who Framed Roger Rabbit and its three related shorts (Tummy Trouble, Roller Coaster Rabbit, Trail Mix-Up), which were all released by Disney, under both the Walt Disney Pictures and the Touchstone Pictures banners. He was furthermore, for a short time, the executive producer of the long-running medical drama ER. In 1989, he brought the concept of The Dig to LucasArts. He contributed to the project from that time until 1995 when the game was released. He also collaborated with software publishers Knowledge Adventure on the multimedia game Steven Spielberg's Director's Chair, which was released in 1996. Spielberg appears, as himself, in the game to direct the player. The Spielberg name provided branding for a Lego Moviemaker kit, the proceeds of which went to the Starbright Foundation.