Combine is a transitive and intransitive verb, therefore it doesn't necessarily need to be followed by an object (a noun or noun phrase).
However there are a few alterations I would make. I have added an article to internet, removed one from the beginning of the subject and added the quantifier all.
Use of the internet is now greater than that of television, radio and all other media combined.
I am not a teacher.
Student or Learner