I am looking at buying the sony kv32ls60 and have read all the pros and cons about on this site. Howvever, one item that does not appear to have been covered is the lack of a child lock on this tv. With two small children running around (both under 3) I am worried that they will think that a new toy has arrived and break my heart (and possibly tv) playing the buttons. So is it the lack of child lock on this tv a draw back. Thanks.