By Robert Lloyd, Los Angeles Times

LOS ANGELES — Christmas, they say, comes once a year, but “once” now lasts for days and weeks and months, as Friday’s inflatable Frankenstein’s monster becomes Monday’s inflatable snowman. The yuletide is now upon us, even before Thanksgiving, its autumnal opening act, has served its first pumpkin pie.

For someone growing up in Southern California, the season was largely understood through television, and old movies on television, where snow fell and sleighs slid and no one was walking around in shorts on Dec. 25. Back in the three-network, four-network and even five-network days, one could see all the specials and special episodes and still lead a relatively normal life. But in this time of many platforms (and with ever-more recycled content swelling t

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