On Sunday my husband's grandfather celebrated his 90th birthday. I setup Skype on his PC and he got to see ~C~. Because of his hearing aids, Grandpa wanted a microphone instead of a headset. It caused some feedback. I could tell he was disappointed that he couldn't hear ~C~ (who happened to be talking low) but he was happy to be able to see him.
My in-laws show ~C~ pictures of the family all the time. I've been worried he won't know us since he hasn't seen us since he was little. He saw my husband and yelled, "~C~ come down!" When a nearly two-year-old invites you for a visit, you can't really refuse, can you? :)