I'm always aware of things that aren't handled well by wwwjdic's glossing. This one is very poor, and although the NG version correctly treats it as 見+たり+聞い+たり it's still messy. Yes, the meaning's obvious once you know a bit of Japanese. I think I'll go with it.

@@ -14,0 +15 @@
+<gloss>(from) one's own experiences</gloss>

Book titles (from a google book search):
中国見たり聞いたり15章: 美紀の北京再訪
シマ・ナイチャーの見聞錄: 沖繩移住者の見たり聞いたり
In this usage, it could be translated as "from one's own experiences" and it seems maybe worthwhile to record... but I went through a couple of 
pages of search results though and these were the only two titles I could find, so maybe not.
Slightly related is 見たり聞いたりためしたり which is the name of a 1947 movie
https://movie.walkerplus.com/mv26693/
and the opening of a seemingly very popular quote from Soichiro Honda (Honda founder):
"人生は見たり、聞いたり、試したりの3つの知恵でまとまっているが、多くの人は見たり聞いたりばかりで一番重要な、「試したり」をほとんどしない"
It gets 0 ngram hits (both with ためしたり and 試したり) but around ~40 on twitter past 24 hrs (including bots.

i'm not convinced that it's needed.  i guess it's harmless, but it doesn't really seem necessary

Kyoto/Melbourne ngrams
見たり聞いたり	3018
見たり聞いたりする	No matches
聞いたり見たり	342
飲んだり食べたり	1176
食べたり飲んだり	1527
食ったり飲んだり	121
飲んだり食ったり	310
寝たり起きたり	1616
起きたり寝たり	137
暑かったり寒かったり	447
寒かったり暑かったり	141

Would you please stop marking entries and entry suggestions as "should be deleted" without providing any rationale?