Try having another read of the thread....Hmm,
Six people responding to the thread excluding my own. Just one recommendation neet by phatboy (exclude mine as I don't doubt the comments made re self powered units ). So what gives ?
Do you well informed guys have none to recommend?
The OP explained what they want to do and asked what SPLITTER to buy. The first response was from Grizzly. Helpful point 1: he corrected the OP's mistake; it's called a switch and not a splitter. Helpful point 2: He provided a LINK to a CYP switch off the CPC web site. I can't check that at the mo, the site is down for maintenance.
Now, bearing in mind that the OP now know what to look for, we come to the second response which is from SamFIDS. "There's loads on Ebay and they're mostly the same" We're all big boys (and girls?) and we know what Ebay is and how to find stuff on there. Of course you could be picky and say there's a lot of rubbish on Ebay; I certainly wouldn't argue. But I think you'd have to be quite hard faced to deny that the OP has been pointed in a direction with a lot of choice. Google is always available as a means to research particular brands and issues.
phatboy and Jaidge both made specific recommendations for Neet. So what's the tally now? Three direct recommendations plus all of Ebay's range. Is there really much more that can be said for HDMI switches costing from a couple of quid to twenty?
There then followed some useful side information about HDMI issues. I'd call that helpful too.
I can't speak for others, but as a professional installer I won't use cheap gear off Ebay. The brands I use are at the upper end of the price range for the simple reason that I know I can rely on them. It's very unlikely I'll need to call back to rectify a problem. However, it's a waste of time recommending someone spend £20-£30 on a switch when something that "appears" to do the same job is available for £4 inc postage.
Then there's the "it's digital... all noughts and ones" argument. It's not true, of course. There's no such thing as a digital cable for HDMI. It's a square wave operating at high frequency. But who really wants to hear that or be bothered to understand it when the mob is screaming "It's noughts and ones"?
Let's not forget the "It either works or it doesn't" argument. In some respects that's true. If the signal is corrupted beyond a certain tolerance then yes, there's no picture or sound. Once again though, it's only part of the story for this apparently "simple" digital circuit. But we won't get bogged down in all these pesky details. The chances are that the switch will work well enough that it seems to do an okay job for not much money, and when someone is looking for a cheap solution then not much else matters at the time of purchase.