When it comes to Roku tv's you have to get in touch with TV manufacturer, Roku only supplies the UI for Roku tv. If you want remote right away you can purchase Roku wifi voice remote from Walmart or Best buy. Once it is paired it will work with your Phillips Roku tv. Or in best buy get universal remote like Insignia like the following:
Insignia™ 5-Device Backlit Universal Remote Black NS-RMT5D21 - Best Buy
Check used ones on that page for discount. The Tv code for your Phillips is 4398.
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