Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't Work

As others have noted, this switch cannot handle dark to bright scene changes. The screen blanks for a half second or more. This occurs with both my Blu-Ray Disc player and HD DVR. After talking with the Cables-to-Go tech support I returned the unit to Amazon and obtained a replacement. The new one didn't work any better. Since I like action movies, this switch makes them unwatchable. As a toslink switch, it worked extremely well. But, that's not why I purchased it.