For 10 points, name these programs which prevented monitor burn-in.
In 1998, a site devoted to South Park-themed things of this type could be found at members.aol.com/ikillkenny.  An expansion to a popular collection of these things called "More After Dark" featured "Boris, the lovable kitten".  The estate of Irving Berlin weighed in on a lawsuit involving fair use in a parody of one of these things which used a character created by cartoonist Berkeley Breathed ("Breth-Ed").  That case, Berkeley Systems v. Delrina, established that (*) software wasn't afforded the same parody protections as literature.  These programs lend their name to a program once hosted by Leo Laporte on TechTV.  Popular examples of these things included a maze-solving routine included with Windows 95 and "Flying Toasters".  For 10 points, name these programs which prevented monitor burn-in.
In 1998, a site devoted to South Park-themed things of this type could be found at members.aol.com/ikillkenny.  
screensavers [prompt on games; prompt on computer games] 