highly agree with the bluetooth OBDII adapter and torque app on your android phone.
here is the adapter i use and it gets good reviews http://tinyurl.com/pyn76p7
not sure the year of your TV but there are many forums for the TORQUE app to get info and the gauges you can post.
here is a good thread on the use of torque app on ford diesel trucks.
http://tinyurl.com/p48z2do
here another general one.
http://www.androidauthority.com/torque-app-android-bluetooth-obd2-95772/
let you see thing like actual transmission fluid temp if possible and a lot more.
search "torque" on google play