We don't have a TV. My husband and I watch some mental bubblegum occasionally (e.g. Top Chef, Breaking Bad) or MMA on download-- about an hour each week. I don't see us buying a TV anytime soon. Most programming is poor, and we prefer to read the news. We occasionally nip down to the gym to work out and watch a period of hockey or football while exercising.
Our son is only 15 months old, so we still have yet to reach an age where pop culture is social currency. I can see us watching live sporting events as a family as he gets older, introducing a classic cartoon or two, and expanding into more educational programming as his maturity allows. I'd love for him to develop an early love of britcom like I enjoyed. I can't imagine keeping him away from the great satire of the early Simpsons, Monty Python, Yes Minister, and Fawlty Towers. Ditto for favourite movies. I think a well rounded person needs humour and light entertainment to balance more serious pursuits.
In truth, we do have screen time now. Every day, we spend a few minutes (e.g. 5-10 mins) watching something like animals, machines, vehicles, or live musicians on youtube on an ipad. I sit with him to make it a shared activity in which we are fully engaged.
If I can summarize my philosophy around screen time-- for adults and children-- it's deliberate consumption. If we watch something, I want it to be because we love the content. There are many shows and films with cultural, comedic, educational, and artistic value, and I plan to make these available to my son when age-appropriate.