Set up bedroom tv with Aerial cable with a 2 way splitter connected to box. Works great. Now trying to add another aerial cable for another bedroom and bought a 3 way splitter but does not work. Is you view box restricted to only a 2 way splitter?
As long as the Youview box gets a strong enough signal it doesn't matter how many splitters are in use.
In my situation I've a 4-way splitter in the loft & each of my boxes is fed by a 2-way splitter. This gives me a signal strength of 62% on the old software (lists) and about 95% on the current software.
Just checked my view box signal strength and results are 83% and quality 100%. Guess it needs to be 90%+ for a 3 way splitter to work effectively