Quoted by Zive, its director Marcel Grega said that it is appropriate to be doing so as there is currently a big demand for advertising in the market.
He added that the new channels will not be made available free of charge via DVB-T if Joj has to pay for the rights of the content they carry.
Joj currently operates a flagship channel of the same name, along with the thematic channels Plus (films, series), Wau (female, Tuti and RiK (kids) and Joj Cinema (movies).
It also offers a channel named Joj Family that is specifically targeted at the Czech market.
Grega did not rule out the possibility of the latter becoming a paid-for service at some stage in the future.
He also said that Joj is actively considering how to build on Joj Family as it can also be seen in parts of Slovakia bordering on the Czech Republic and therefore potentially impacts on the viewing figures and ad revenues of Slovak stations.
Grega in addition said Joj is considering investing in a station in the Czech Republic.
The broadcaster already prepares news in Czech and has access to content from Freemantle Media licensed for the Czech Republic.