Due to living in Michigan, much of the year is very unappealing as it relates to outdoor exercise. I resorted to getting a treadmill, put it in front of the TV as a constant reminder - you can watch and sit or watch and walk. It’s been two years and I still use it regularly.
Heck, with smartphones, you don’t even need a tv set nearby. There’s a guy with a podcast whom I listen to when I’m on the treadmill. He’s so humorous and conversational (a libertarian in Guatemala who discusses life in Latin America while endlessly plugging his seminars) that my hour is up before I realize how much work I’ve put in.