I recently had to re-add my LG TV as it mysteriously stopped working. It works fine for the most part, although the TV volume doesn't work when switching over to a different input - a quick reload fixes this. This is a known issue.
However the behaviour I'm now seeing is that following a reload, you touch the volume controls (up or down), and bam the TV volume goes straight up to 99! Which in case you are wondering, is very, very loud :-)