This is a rather old thread, but being an electronic tech for 35yrs I'd advise against using hot glue or any other glue to glue parts to the board. 60 million or more TVs built over the years they would glue parts to the board and this was always the first place to look when problems reared their ugly head. Glue expands/contacts with temp and it's amazing the damage it will do, and it will every time. Better to use two sided tape if it can be made to work in the situation.
Chinese love glue and let me tell you if they thought glue could be used here they would have gooped it on 2" thick. Thankfully and hopefully lessons have been learned after all these years, don't glue parts to the board!