We all have the networks--whether broadcast or cable, legacy or newbie--that we gravitate to, but I was wondering this morning about so-called indispensable networks. Given that I write about television, nearly all networks could be said to be indispensable in one way or another, but what I was pondering was that one specific television channel that you can't turn away from, that you automatically switch to when you turn on the television, or which you have on as background while you're doing other things in our multi-tasking obsessed society. Many years ago, that channel was--perhaps not surprisingly for those of you who know me--Food Network, but it was replaced by BBC America around 2000 and for many years that was my go-to network, the one spot on the metaphorical dial that I could always depend on for diverting fare, soothing background noise, or a sense of the familiar and comforting. For whatever the reason, sadly, that's not the case anymore and--shock, horror--I...