Surging, Brakes?

Cable television had a lot more to say
                        (than I could hear) 
   but!
          Am I in the same _
   As the rowing goes up(stream)
                    Salmon?
                                Net what you can?
      What is a waterfall?
                               I 
                                have
                                 said
                                  too
                                   much
                                    and
                                    never
                                    enough.