Its a "sequel" per se that most members of HS season 2 and some members of HS season 3 reunite and interact together. For those who are heartbroken with the "famous couple ship" in season 2, this is a must show for closure and happier endings. :)

Both have strangers who are non-celebs that cohabitate in one house and they date while doing missions. Both are reality shows with panels discussing the interactions of the non-celeb participants. Though Love catcher has an added spice since not everyone is in it for love... some for money. So the panel and participants have to guess, which makes the show more interesting.

Both series are sweet reality dating shows with the participants living in the same house and interacting while doing missions. In the end they would choose the partner that they like. The only difference is that in Love timing, the participants are non-celebs and there is a panel that discusss the interactions. While in Idol and Romantic, korean idols are the participants.

Love timing has the same concept as Terrace house, a Japanese reality dating show about strangers living in one house. If you enjoyed one, you will most likely enjoy the other. Both shows also have more than one season to enjoy.

Love timing has the same concept as Heart signal. Heart signal has Korean and Chinese versions and has 3/4 seasons. My favorite would still be Heart signal Season 2 Korean. Watching the first season of Love timing reminds me of that heart fluttering while I support my fave couple on both series.