 
 <translate> The important part for answering this question is: This series debuted in 1982 and ran for four seasons on NBC. Therefore, the final answer is four seasons. <ibo> Akụkụ dị mkpa maka ịza ajụjụ a bụ: Usoro ihe nkiri a bidoro na 1982 ma na-agba ọsọ maka oge anọ na NBC. N'ihi ya, azịza ikpeazụ bụ oge anọ. 