Found the following hamletworks.org entries referring to line 2008-9

View Commentary Note for 2008-09
2008-9 The Players | cannot keepe <counsell>, they'le tell all. 

View Material Textual Note for 2008-09
2008-9 The Players | cannot keepe <counsell>, they'le tell all. 

View Commentary Note for 2008
2008 Ham. We shall know by {this fellow, Enter Prologue.} <these Fellowes:>3.2.141

View Material Textual Note for 2008
2008 Ham. We shall know by {this fellow, Enter Prologue.} <these Fellowes:>3.2.141