You can find the Czech list of national finalists at the usual places. (see links)
One of the participants is legendary Czech superstar Helena Vondráčková. It's rumoured she's been selected as a tv-crowd puller, but that doesn't matter, Eurocovers just loves the local legends.
Presenter of the Eurosong preselection show will be Jiří Korn and hey presto, a Eurocover is born.
Jiri and Helena recorded a Czech version of the Great British 1976 classic Save your kisses for me back in 1977 titled Já půdju tam a ty tam.
Another Eurocover by Helena was Jak mám spát, Après toi by Vicky Leandros (Luxembourgs 1972 winner).
Helena Vondráčková has recorded about a million songs from 1964 to present day and at her excellent multilingual home page you can find very detailed discographies and songlists.