2) Connect laptop to Wifi network
3) Connect TV to laptop's Ethernet port (and set TV to use wired Ethernet)
4) "Share" your wifi connection with devices on the Ethernet port.
5) Run Wireshark and start a capture session on your [edit: Ethernet] port.
Edit: recommend capturing from Ethernet port as there will be less other traffic.
2) Connect laptop to Wifi network
3) Connect TV to laptop's Ethernet port (and set TV to use wired Ethernet)
4) "Share" your wifi connection with devices on the Ethernet port.
5) Run Wireshark and start a capture session on your [edit: Ethernet] port.
Edit: recommend capturing from Ethernet port as there will be less other traffic.