Harmony 650 vs 665: Which Budget Logitech Remote Wins? - Universal Remote Reviews
Amazon.com: Logitech Harmony 665 Advanced Remote Control, Universal Entertainment Remote, Replaces up to 10 remotes with Guided Online Set-up and Interactive Help (Renewed) : Electronics
Logitech Harmony 700 Eight-Device Remote returns to $50 shipped, today only (Reg. $70)
How to Repair Buttons Logitech Harmony 600 650 665 700 OLD VIDEO (See Description) - YouTube