What is your Roku Stick's model number?
NBC says its NBC Peacock app for Roku was written by NBC to be compatible with the following Roku models (Check your model number via Settings > System > About):
(Current as of September 23, 2021. Check the source listed below for updates.)
Roku 2 (4210X model only)
Roku 3 & 4 (model 4200X or later)
Roku Streaming Stick (model 3600X or later)
Roku Express/Express+ (model 3900X or later)
Roku Premiere/Premiere+ (model 3920X or later)
Roku Ultra/Ultra LT (model 4640X or later)
Roku TV and Smart Soundbar (model 5000X or later)
From <https://www.peacocktv.com/help/article/what-devices-and-platforms-are-supported-by-peacock>
Roku Community Streaming Expert
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Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X
