Hi wmhjr1,
Sorry about the inconvenience. You must connect a wireless display adapter to your TV before setting up wireless display.
Request you to use the below link to download WIDI by selecting the right operating system under Network tab:
To set up wireless display:
1. Turn on your computer. Ensure that wireless is enabled.
2. Connect the wireless display adapter to the TV.
3. Turn on the TV and the wireless display adapter.
4. Select the appropriate video source for your TV, such as HDMI1, HDMI2, or S-Video.
5. Double-click the Intel Wireless Display icon on the desktop.
The Intel Wireless Display window appears.
6. Select Scan for available displays.
7. Select your wireless display adapter from the Detected wireless displays list.
8. Enter the security code that appears on your TV.
To connect to existing wireless display connection:
1. Double-click the Intel Wireless Display icon on the desktop.
The Intel Wireless Display window appears.
2. Select Connect to Existing Adapter.
If you have further questions do reply to the same post.