I have a 54.6" Samsung TV with a screen resolution of 1920x1080 (model UN55F7100AFXZA) and a broadband internet connection supporting 300mbps download. Which Roku streaming stick do I need? Also, is there a monthly subscription cost to be able to watch the TCM channel?
All (current) Roku devices pretty much work the same, so any would do. The differences are in the remote (directional IR or point anywhere), whether it supports 4k (which you don't need), whether it has an Ethernet jack or only Wi-Fi, and maybe some exotic (for me anyway) audio support. If you want to avoid Wi-Fi headaches and your router is close enough to your TV that you can run an Ethernet cable to the Roku device I'd suggest getting one with an Ethernet jack (basically the Ultra or Walmart's Ultra LT).
TCM requires a pay-TV subscription of some kind. This link is two years old, but it gives some options. I don't know if anything has changed since it was written:
https://www.cordcuttersnews.com/how-to-watch-tcm-on-roku-fire-tv-apple-tv-more/
You can compare Roku devices here: https://www.roku.com/products/compare
All (current) Roku devices pretty much work the same, so any would do. The differences are in the remote (directional IR or point anywhere), whether it supports 4k (which you don't need), whether it has an Ethernet jack or only Wi-Fi, and maybe some exotic (for me anyway) audio support. If you want to avoid Wi-Fi headaches and your router is close enough to your TV that you can run an Ethernet cable to the Roku device I'd suggest getting one with an Ethernet jack (basically the Ultra or Walmart's Ultra LT).
TCM requires a pay-TV subscription of some kind. This link is two years old, but it gives some options. I don't know if anything has changed since it was written:
https://www.cordcuttersnews.com/how-to-watch-tcm-on-roku-fire-tv-apple-tv-more/
You can compare Roku devices here: https://www.roku.com/products/compare
Thanks for your answer. I see that I need to have some kind of subscription.