1. We have a Belden-T (9100) coax with gray outer insulation running back to the bedroom TV. I has "Series 59" also stamped on it. Does mean it is RG 59?<br/>2. Is it possible to pull an RG 6 coax in to replace it by just connecting with a barrel connector to the 59 and pulling in the 6? I am worried that there may be some kind of cable clamp on the bundle that won't allow...