<P> In the third season, Janet Jackson played Willis' girlfriend Charlene DuPrey . She was a frequent recurring character until Season 6, when Charlene and Willis decided to break up, but remain friends . </P> <P> Other classmates and friends of Arnold seen over time included Robbie Jason (Steven Mond) and snobby Lisa Hayes (Nikki Swasey), who initially was sweet on Arnold, but later came to despise him, leading to hatred between the pair and many squabbles . Miss Chung (Rosalind Chao) was Arnold's teacher . In the fall of 1985, when the series moved to ABC, Arnold, Dudley and Lisa entered high school, where they gained a new friend in Charlie (Jason Hervey). </P> <P> An oft - mentioned character, spanning the entire show's run, was "The Gooch", a notorious bully at Arnold's school . First mentioned in the first - season episode "The Fight", which revolves around his bullying of Arnold, his name is mentioned in numerous episodes (and his bullying of Arnold returned as the center of several plots), with Arnold's frequent descriptions of him to be of a burly, troublesome brute, forever looking for trouble but not very intelligent, but the character never actually appeared on screen . In season 7, after years of harassing Arnold (and later Sam), the Gooch was finally defeated by Arnold's neighbor and nemesis Carmella . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> <Th_colspan="3"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Network </Th> <Th> Rank </Th> <Th> Rating </Th> <Th> Tied with </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> November 3, 1978 (1978 - 11 - 03) </Td> <Td> May 4, 1979 (1979 - 05 - 04) </Td> <Td> NBC </Td> <Td> 27 </Td> <Td> 19.9 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 26 </Td> <Td_colspan="1"> September 21, 1979 (1979 - 09 - 21) </Td> <Td> March 26, 1980 (1980 - 03 - 26) </Td> <Td> 26 </Td> <Td> 20.3 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> November 12, 1980 (1980 - 11 - 12) </Td> <Td> May 13, 1981 (1981 - 05 - 13) </Td> <Td> 17 </Td> <Td> 20.7 </Td> <Td> Fantasy Island Trapper John, M.D. </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 26 </Td> <Td_colspan="1"> October 29, 1981 (1981 - 10 - 29) </Td> <Td> May 20, 1982 (1982 - 05 - 20) </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> October 2, 1982 (1982 - 10 - 02) </Td> <Td> May 14, 1983 (1983 - 05 - 14) </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> October 1, 1983 (1983 - 10 - 01) </Td> <Td> May 12, 1984 (1984 - 05 - 12) </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 7 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 29, 1984 (1984 - 09 - 29) </Td> <Td> May 4, 1985 (1985 - 05 - 04) </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 8 </Td> <Td_colspan="2"> 19 </Td> <Td_colspan="1"> September 27, 1985 (1985 - 09 - 27) </Td> <Td> March 7, 1986 (1986 - 03 - 07) </Td> <Td> ABC </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> </Table>

Did they ever show the gooch on different strokes