WMS CENIA : http://geoportal.gov.cz/web/guest/wms
add like ArcGIS server: http://geoportal.gov.cz/arcgis/services
can be added using a utility from ARCDATA: http://www.arcdata.cz/podpora/tipy-a-triky/Detail/?contentId=118385
Topographic map ČÚZK: Add as ArcGIS Server http://ags.cuzk.cz/ArcGIS/rest/services/zm/MapServer
Czech water network from VÚV TGM v.v.i. in SHP – database DIBAVOD: http://www.dibavod.cz/27/struktura-dibavod.html
LANDSAT from ESRI: ArcGIS Server http://imagery.arcgisonline.com/ArcGIS/services
List of czech services maintained by Gepro: http://www.gepro.cz/geodezie-a-projektovani/tipy-a-triky/wms/wms-sluzby-v-cr/