This is a company that Amazon is unable to wipe out, said Jim Cramer, on the floor of the NYSE.

Roku Inc. (ROKU)  shares hit a record high Thursday after the device maker said second quarter sales topped analysts' forecasts even as it challenges giants such as Apple (AAPL)  , Amazon (AMZN) and Google (GOOG)  the television streaming market.

Watch for the video above for more on Cramer's take on the blow-out earnings numbers. 

And for more on Roku, click here: