[["Alex Trebek has hosted Jeopardy since 1984.", 452.5], ["Alex Trebek has hosted Jeopardy since 1984. So he has hosted for 35 years.\n\n", 312.0], ["Alex Trebek has hosted Jeopardy since 1984. So he has hosted for 35 years.", 218.0]]
how many years has alix trebek hosted jeopardy
film and tv,jeopardy