When I think about my TV life without “This is Us,” one word comes to mind: Nooooooooo. On Tuesday, the NBC drama following the past, present and futures of Jack and Rebecca Pearson and their three children is ending after six seasons. But if you have been embedded with the Pearsons since they came into our lives on Sept. 20, 2016, you know that we are losing more than just another TV show. We are losing friends. We are losing role models. We are losing de facto marriage counselors, philosophers and life coaches. More than anything, we are losing family. In our six seasons with the Pearsons, w…