hello BarryMc
First of all, thank you for the information, they are much appreciated.
While your TV has a LAN port, there’s no information on the internet to be found, how fast the port is. It might be just a 100Mbit/s "Fast"ethernet-adapter. The results would fit the assumption.
Please sign on to your Connect Box it should show you how fast the connection speed is. Here’s an example how it should look like:

If your TV only has a 100Mbit/s NIC the Connect Box will show 100. The Wifi on the TV might be faster then the LAN port.
Your Wifi-test results are good. They are limited by the wifi-signal and not so much by the internet-speed. I recommend using wifiman by Ubiquiti to test wifi-connections. It also includes wifi speeds.
The app is freeware and works without the need of Ubiquiti hardware.

This tests where made in different locations and with different settings on a Connect Box 3 HFC (2.5Gbit/s down / 100Mbit/s up).