Chou Denji Machine Voltes V

These two shows are among the best of the old school of super robot shows. They both have interesting characters and fairly interesting ongoing plotlines behind their episodic natures. 

Both of them are exceptional super robot series of the 70's that every fan should watch! 

Among 70s super robots (both released 1977) Voltes V and Zambot 3 stand out as particularly serious and dramatic. They both execute on their premises so well that they remain worth watching today. Voltes V is the less cynical show and is a relatively "straight" example of a monster-of-the-week super robot show, but its melodrama is executed so well, it adds a lot of weight and staying power to what could've been disposable entertainment. Zambot 3 takes the same tropes Voltes V treats seriously but deliberately over-commits to the seriousness to the point it generates subversive black comedy and a very different flavor of drama. Both work wonderfully, even though their genre was so new at the time. Also both shows involved Yoshiyuki Tomino shortly before the release of Gundam— though in different capacity (Producer for Voltes V, creator and director for Zambot 3). read more 

Both are classic anime about groups of five smaller robots that combine into a bigger one and fight enemies. 

another installment in tadao nagahama's mecha trilogy, i grew up with these in the PI, anyway daimos is more focused on romance of a romeo and juliet type of nature as opposed to voltes v's team-based good vs. evil plot, both are great and still intact is nagahama's own style of old-scool mecha action. 

Another series by the same director, Tadao Nagahama. Both shows share the major theme of revolution, and both feature plenty of melodrama, swordfights, horses, frilly dresses and crying. 

Both from Tadao Nagahama's "Robot Romance Trilogy" Voltes V has been compared to Combattler V for having extremely similar storylines, mecha design and characters. Voltes V is definitely an improvement on Combattler V in terms of story telling however.