I was doing my research for behsci and I found out what ABS CBN means.  It's actually a collaboration of two network stations in the 50's ABS (Alto Broadcasting System) initially owened by the Quirino's (yes, former pres. elpidio's quirino's family but more specifically, it was his brother's).  In 1958, the lopez brothers took interest in telecommunications that they founded the CBN (Chronicle Broadcasting Network, they bought ABS a few months later.\

ABS-CBN = Alto Broadcasting System - Chronicle Broadcasting Network :)