By 2012 , after over twenty years working with ATV , Meng did n't renew her contract .
By 2012 , after over twenty years working with ATV , Meng did n't transferred over to ATV 's competitor , TVB .
By 2012 , after over twenty years working with ATV , Meng did n't renew her contract and transferred over to ATV 's competitor , TVB .