Linksys DMA is not Windows 8 compatible (and hasn't been supported by Linksys since 2008). Also, it doesn't support playing back H.264 recordings (some of the newer/lesser used HD stations are starting to use that), and has sucky codec support for downloaded videos.
Your best bet, by far, is Ceton or HDHR Prime for your tuner, XBOX 360 for any screens other than the one directly on the PC.
No remote is included, for the PC I recommend a good wireless keyboard as the best remote, although there are many others available, some as little as $8.
For my 3 XBOX 360s, I use these:
http://www.iboyds.com/microsoft-universal-media-remote-x360-b4o-00001.aspx
Note, I said
360.
THE XBOX ONE WILL NOT WORK.
Also: The FIOS ActionTec router is a dual band MoCA adapter. By default it does MoCA on 1GHz frequency over the coax for the WAN connection to the ONT, and 1.1GHz to talk to any set top boxes. If you don't either turn this feature off or even better switch to your own router since you already have wired ethernet everywhere, it will interfere with the reception of about half a dozen channels that this is a harmonic of unless you put a low pass filter in front of the tuners. For users without ethernet wiring, the MoCA is actually pretty nice. It has enough solid bandwidth for HD streams to about 3 extenders simulaneously. The powerline adapters can barely handle one (and even that will be flaky).