Anyone who has seen the classic holiday movie "Elf" knows “the best way to spread Christmas cheer is singing loud for all to hear,” and our digital doorbells are one way to spread a little extra joy.

Dear James: My doorbell hardly rings anymore, and I probably need a new one. It looks like a fairly simple project to replace it. What are the basic steps to do this? -- Cindy D. Dear Cindy: A ...