There is a rather simple way to cue up a specific time on the LG Blu-Ray players! Instructions listed in this article.
Put in disc and start movie playback, then pause it
Press INFO/MENU button, which will bring up a menu bar at bottom of screen
Use right arrow to highlight OPTION and then hit <enter>
A new menu will now appear down left side of screen. Use down arrow to highlight the timecode (this will initially be rendered as something like 0:00:01/1:27:39, i.e. the current time/the total length of the movie)
Type in the time you wish to begin clip from, which will change the number on the left so it will now look, for example like: 0:23:45/1:27:39
Hit <enter> again and immediately hit <pause> to freeze image. Remove menu bar by again hitting INFO/MENU button
Hit <play> to begin showing clip