The Connecticut school shooting rampage compelled Hollywood to air disclaimers before violent television shows and to swap some programs for others. Blake Shelton’s holiday special was pulled at the last minute Friday and replaced with one starring Michael Buble. That’s because the Shelton special had an animated segment about a reindeer killing, which NBC removed from any future showings of the special.

“It’s a ritual for entertainment companies in the wake of national tragedies,” noted Chris Ender, CBS entertainment spokesman. “The network’s series and promos are all looked at carefully with an eye toward whether any of them could be considered insensitive with the news still fresh in mind.”