Similar channels are defined by the intersection of subscribers. The more subscribers two channels have in common, the more similar they are. In free version of the service you can see only top 15 similar channels.

Channels similar to Smithsonian Channel Aviation Nation

#	Channel	Category	Country	Language	Subscribers	Views	# videos	Created
1	BRIGHT SIDE	Knowledge Lifestyle			44.6M	11.18B	8,129	2017-03
2	Movieclips	Entertainment Movies	United States 🇺🇸		61.6M	62.52B	40,773	2006-04
3	BBC News	Entertainment Politics Society TV shows	United Kingdom 🇬🇧	English (Great Britain)	16.2M	5.39B	22,131	2006-04
4	60 Minutes Australia	Entertainment Society TV shows	Australia 🇦🇺		5.77M	2.21B	4,384	2013-01
5	PewDiePie	Lifestyle Video games	Japan 🇯🇵		111M	29.34B	4,772	2010-04
6	HISTORY	Entertainment Knowledge Movies TV shows	United States 🇺🇸		13.6M	4.59B	10,048	2006-08
7	ABC News	Entertainment Politics Society TV shows	United States 🇺🇸		16.8M	14.9B	90,831	2006-08
8	Inside Edition	Entertainment Lifestyle Society TV shows	United States 🇺🇸		13.2M	24.11B	34,869	2012-10
9	Timeline - World History Documentaries	Entertainment Knowledge Military Movies Society TV shows	United Kingdom 🇬🇧		5.26M	1.17B	1,137	2017-01
10	SmarterEveryDay	Hobby Lifestyle Technology	United States 🇺🇸		11.5M	1.2B	380	2006-04
11	ViralHog	Lifestyle Pets	United States 🇺🇸		24.8M	30.33B	47,171	2014-08
12	TKOR	Hobby Lifestyle	United States 🇺🇸		12.5M	3.52B	1,586	2010-01
13	CBS News	Entertainment Politics Society TV shows	United States 🇺🇸		5.92M	5.11B	124,268	2006-09
14	The Tonight Show Starring Jimmy Fallon	Entertainment Movies TV shows	United States 🇺🇸		31.7M	17.69B	10,405	2006-01
15	MrBeast	Entertainment Lifestyle	United States 🇺🇸	English	298M	53.73B	804	2012-02