A:AnswerThis TV supports Wi-Fi but the Roku app isn't available for download on this TV; however you can connect a Roku device to one of the HDMI inputs on the TV.
A:AnswerI am actually adding more information on My Original question & problem. Toshiba had me try, two hard factory resets, to no avail.
The rep then agreed That likely this TV is dead, after only 1-1/2 years!