'Jeopardy!' host Alex Trebek on completing chemo and taping Season 36: 'I'm on the mend' - USA TODAY

'Jeopardy!' host Alex Trebek on completing chemo and taping Season 36: 'I'm on the mend'  USA TODAY

'Jeopardy!' host Alex Trebek told fans Thursday he's "on the mend" and taping Season 36.