THE BAR IS VERY, VERY WELL

It is true that the Sony HT-XT1.CEL is provided only with an optical cable. Should acquire a HDMI 1.4 cable (ie the type ARC) if and only if we want to connect the TV has a HDMI / ARC (ie allowing his back through this new type of cable (HDMI 1.4 standard) ).
In this case, or television has an HDMI ARC jack and we have acquired such a HDMI 1.4 cable, just use this one cable to connect the TV with the sound bar.
In case (my case) or TV does not have an HDMI jack art (ie CRA as "Audio Return Channel") the portion of sound between the TV and the bar will be only through the optical cable (my TV has such output ... Check that your TV has in such an optical output).
Having a TV Sony Bravia KDL-46W4000-SONY (without HDMI ARC jack, but an older HDMI) I added all the same any HDMI cable, in addition to the optic link (necessary for the passage of sound between TV and the bar). This is to synchronize the bar with the TV (if I start bar, the sound on the TV off automatically and vice versa).
I said that in this case if you do not have that extra HDMI cable (not ARC) you will have to mute the TV manually (as provided CROSSTALK) and return it as soon as you use more, but the bar always manually.

THE BAR IS VERY, VERY WELL (easily worth the BOSE SOLO similar but 2 times more expensive and less connections provided capabilities) ... THIS BAR EXCEEDS after me (knowing that at the beginning of my research I TV was a Sony Bravia) all other bars of the side HDMI connectors competition, in addition there is the interface BlueTooth and still PlusPlus NFC (Too bad "NFC iPhone 6 will be reserved exclusively for Apple Pay "according to [...] ... I still connects all the Bluetooth pairing .... COOL).