My Samsung TV does not have any 3.5mm jack input, therefore I am not able to plug in my speakers. I want to ask if there is any possibility to connect my laptop through HDMI as ARC and set it as a speaker? When I tried it and turned the sound through ARC there was no sound, neither the laptop was doing anything.
First off, TVs have no 3.5mm INPUT, never, they may have 3.5mm OUTPUT.
So I really don't know what you want. Play a TV program on laptop's speakers (that's weird). Play a laptop video and have everything comes out on TV? Via HDMI does everything. Laptop has no HDMI? OOOPS. Play laptop audio-only on TV speakers? HDMI may or may not work. TV wants video/audio information. TV may have analog input (RCA jacks), often referred in manual as AV input, again wo video I don't know if TV will take audio only.