When you choose to add devices such as a switch or a splitter you are going to need to use a more powerful HDMI cable. Getting a more powerful HDMI cable is only a matter of selecting a heavier wire gauge. A thicker wire gauge makes it possible for the signal to transfer over longer distances. Because signal loss is a concern, the bulkier wire gauge is effective in reducing the signal loss on a connection with more devices.  

For people who have a more complicated setup, but don't have to run any long HDMI cables, then you'll still want to use a slightly heavier than normal line. I suggest 24AWG HDMI cables.  

28 awg line is the most common awg you'd find in the store, a 24 awg line is heavier. 22 Gauge wire is the best option if you want to run an HDMI cable over extended distances.  

With regards to long HDMI cable runs, you will need to use thicker wire gauge. For installs with only the source device and the display I can usually get away with 24AWG wire for cable runs up to 40 feet. Anytime the installation gets more complex I'll only use 24AWG up to 25FT and 22 gauge for anything longer.  

One challenge with the 22 gauge wire is its stiffness. It does not bode very well for tight turns or spaces because it lacks the pliability. You would be wise to use an HDMI port saver with such a inflexible wire gauge since it could possibly damage the ports on your Television.  
 

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