Most students like watching TV as for homework,they say they have to do it
大多数学生喜欢看电视作为家庭作业,他们说他们必须这样做.
在这里,as for 作为for 的意思：作为.
Most students more like watching TV as to homework,they say they have to do it
大多数学生相较于做作业,更喜欢看电视,他们说他们必须这样做.
在这里,as to 作为to的意思：相较于,因此如果前面有more的话,则倾向于as to.