code: public TVEpisodeInfo getEpisodeInfo(int tvID, int seasonNumber, int episodeNumber, String language, String... appendToResponse) throws MovieDbException {
          TmdbParameters parameters = new TmdbParameters();
          parameters.add(Param.ID, tvID);
          parameters.add(Param.SEASON_NUMBER, seasonNumber);
          parameters.add(Param.EPISODE_NUMBER, episodeNumber);
          parameters.add(Param.LANGUAGE, language);
          parameters.add(Param.APPEND, appendToResponse);
  
          URL url = new ApiUrl(apiKey, MethodBase.EPISODE).buildUrl(parameters);
          String webpage = httpTools.getRequest(url);
  
          try {
              return MAPPER.readValue(webpage, TVEpisodeInfo.class);
          } catch (IOException ex) {
              throw new MovieDbException(ApiExceptionType.MAPPING_FAILED, "Failed to get TV Episode Info", url, ex);
          }
      }
docs: Get the primary information about a TV episode by combination of a season
  and episode number.
  
  @param tvID
  @param seasonNumber
  @param episodeNumber
  @param language
  @param appendToResponse
  @return
  @throws MovieDbException