Unfortunately, you can’t. The Roku XD 2050 was released in 2010, and the 2 XD 3050 was released a year later. Both models are no longer supported as of summer 2020, so they are now considered “Legacy Products.”
If your TV is an old, obsolete analog SD set, you’re probably better off upgrading your Roku device to an Express+ 3910 from 2017, if you ever find one at a thrifty market. Several of the Roku 3910 units on Amazon and eBay are price gouging, and production of the model itself was discontinued sometime between the summer and fall of 2018, in favor of its successor model, the 3931 (released Sept. 2018, HDMI-only).
Or, if your TV is a newer HD set, I’d recommend the Roku Ultra LT 4801.
I’m into videotapes and old electronics stuff, including extenders, converters and analog 4:3 TV sets (which are obsolete these days), and Miss Bianca is my favorite character in Disney’s The Rescuers (1977) and its sequel, The Rescuers Down Under (1990). I am not a Roku employee, only a user like you. ~ Jordan