Can i connect an HMDI 1.3 from the HUB to the TV?

Sorry if this is an stupid question; the HUB is compatible with 1.4 but i think my TV is not. So can i connect an HMDI 1.3

Yep…  Shouldn’t be an issue as long as it’s a good qualtiy cable.

My TV is HDMI 1.3 and I connect with an HDMI 1.3 cable.  No issues.

Yes it is compatible.  1.4 and 1.4a HDMI are both backwards compatible.  You can connect any lower HDMI cable to a 1.4 or 1.4a device and vise versa you can connect a 1.4 or 1.4a cable to a device with a lower HDMI output.