Code:
on @*:join: [color:red]#channel2  [/color] :{ if ($nick ison  [color:red] #channel1 [/color] ) .mode # +v $nick } 


Replace #channel1 and #channel2 with the appropriate channel names and ensure that the person/bot that's running the script has ops in #channel2


P.S. My bill will be arriving shortly...LOL laugh