@Melissamcg Unless you're referring to a Glass TV then any other TV woukld not necessarilly be affected by a broadband connection especially if your using external boxes or the inbuilt tuner of your TV.
For the comunity to help you'll need to explain what your seeing these Glitches on and what TV's or apps are involved.
Like you I'm a customer here, Sky Employees are clearly identified as such.
43" Glass TV & Puck Whole Home
Please note I only provide help on the main forums and not via PM, PM's are switched off.
Samsung 75" 4K TV, Sky Glass Gen 2 55", Sky Stream, EE FTTC Broadband, Three 5G Broadband (Backup), Sony 7.1 AV Receiver, Technisat MultiSat receiver.
