Can I ask, J, when you sent the link? I wouldn't worry too much a bout H not responding immediately- he may have been surprised by the communication, or be thinking about it. In DR and CYL, MWD says to try a new behaviour a few times before deciding whether to discard it, unless it brings a negative change about. Do you think it's worth persevering and sending another link on a different topic? (Actually, just thinking about it, can H view Youtube at work or home? My H couldn't at first so he didn't respond immediately, but he's into it now).