Mystrey Samsung TV detector coils

[Dom13c]

 Recently an electronics parts supplier shop nearby was having a shop cleanup. Thinking this might be a chance to get some old stuffs I hit by that shop and saw a bunch of canned/ shielded inductors/ toko coils ready to be thrown.after asking the shopkeeper he gave me a whole buch of them ( 100 nearly) . amongst them I found some weird coils named
"Samsung detector coil"
These coils have got two capacitors at the bottom and a diode( silicon diode. (Vforward was ≈.7v) with no markings) connected to one side of the two tuned coils.  Googling "Samsung detector coil" produced nothing informative.

Do you guys know what they are and what their proper application is?
Sorry for poor quality images. my camera has gone out of focus, so you might find it a bit problematic to clearly see the parts of the coil

[TheMG]

Detector and de-modulator are two terms often used interchangeably, so very likely these would have formed part of either the video or FM audio de-modulation circuits in an analog TV.

Integrating other components inside of the coil can helps cut down on interference and keeps parasitic inductance between components to a minimum especially since the L and C form a high Q resonant circuit typically.

[radiolistener]

Such inductors usually used in different RF equipment, for example radio receivers. Their main goal is to make LC circuits for filters. But their working frequency is limited with about 100-500 MHz. This is why it is not used for nowaday GHz range RF equipment. Their main target is HF band (30-50 MHz and below).