I think the Roku LE is simply a Roku Express under a different name. I'm not sure if that's the white version. Regardless, all Roku devices hook up basically the same. HDMI cable between Roku and TV, power connected to wall, batteries in remote, TV on the correct HDMI port, follow the on-screen instructions.
For details, rather than that general description, try the Roku Setup Page.
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
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