Under Dutch law: sure they can. As long as you had no reason to suspect it was a stolen TV (super low price, no receipt even though it was basically new, stuff

Under Dutch law: sure they can. As long as you had no reason to suspect it was a stolen TV (super low price, no receipt even though it was basically new, stuff like that) a party that bought the TV second hand is now the legal owner even if the initial owner gets ahold of the current owner. Under Dutch law the most common thing this applies to is second hand bicycles. If you bought it off a junkie at the train station for 10 bucks, it's probably not yours to keep. Showing up to a house through a Facebook-group and paying something like 100 bucks for a second hand bike would totally qualify though, even if that bike turned out to be stolen.