Are you trying to delete an app from your Yahoo! Connected TV? You may delete most apps from your TV by doing the following:
Press the interactive TV button on your remote control to bring up the list of TV apps.
Note: The interactive TV button will look different depending on the brand. Refer to your TV manual for more information.
Use the right and left arrow buttons to select the app in the list.
Press the yellow button on the remote control.
Select the Delete button on the TV screen and confirm the deletion of the app.