I have a question, what is the purpose of linking the tv adapter together in tvheadend? Does it improve signal or streaming. I'm asking because i'm using a PCie wintv quadhd atsc/QAM tuner card, and it show 4 tuners in the adapter tab. Inside the settings, there's an option to link them together. I have used tvheadend in the past and never question this option and now I'm curious.