Power Rangers Ninja Storm - 2003 is rated/received certificates of:
Australia:PG (DVD rating)
Netherlands:MG6
USA:TV-Y7
Power Rangers Megaforce - 2013 is rated/received certificates of: USA:TV-Y7
Power Rangers DinoThunder - 2004 VG is rated/received certificates of: USA:T
Power Rangers Megaforce - 2013 VG is rated/received certificates of: USA:E10+
Power Rangers Zeo - 1996 is rated/received certificates of: Australia:G USA:TV-Y7
Power Rangers Samurai - 2011 VG is rated/received certificates of: USA:E10+
Power Rangers Samurai - 2011 is rated/received certificates of: Singapore:G USA:TV-Y7
No, Power Rangers Samurai do not appear in Power Rangers Ninja Storm.
Power Rangers Operation Overdrive - 2007 is rated/received certificates of: USA:TV-Y7
Power Rangers Zeo - 1996 Rock-a-Bye Power Rangers 1-30 is rated/received certificates of: USA:TV-Y7
Power Rangers Zeo - 1996 Target Rangers 1-4 is rated/received certificates of: USA:TV-Y7
Power Rangers Zeo - 1996 Rangers in the Outfield 1-6 is rated/received certificates of: USA:TV-Y7
Power Rangers Time Force - 2001 VG is rated/received certificates of: USA:E